Problems Associated with Clinical Chemistry Quality Control Materials

References

• Grannis G. F., Caragher T. E. Quality control programs in clinical chemistry. CRC Crit. Rev. Clin. Lab. Sci. 1977; 7: 327
   PubMed Web of Science ®Google Scholar
• Barnett R. N., Youden W. J. A revised scheme for the comparison of quantitative methods. Am. J. Clin. Pathol. 1967; 37: 243
   Google Scholar
• Buttner J., Borth R., Boutwell J. H., Broughton P. M. G., Bowyer R. C. Provisional recommendation on quality control in clinical chemistry. II. Assessment of analytical methods for routine use. Clin. Chim. Acta 1976; 69: F1
   PubMed Web of Science ®Google Scholar
• Broughton P. M. G., Gowenlock A. H., McCormack J. J., Neill D. W. A revised scheme for the evaluation of automatic instruments for use in clinical chemistry. Ann. Clin. Biochem. 1974; 11: 207
   PubMed Web of Science ®Google Scholar
• Vikelsloe J., Bechgaard E., Magid D. A procedure for the evaluation of precision and accuracy of analytical methods. Scand. J. Clin. Lab. Invest. 1974; 34: 149
   PubMed Web of Science ®Google Scholar
• Logan J. E. Evaluation of commercial kits. CRC Crit. Rev. Clin. Lab. Sci. 1972; 2: 271
   Google Scholar
• McLelland A. S., Fleck A., Burns R. F. A limited protocol for assessment of within-batch performance of multichannel analysers. Ann. Clin. Biochem. 1978; 15: 12
   PubMed Web of Science ®Google Scholar
• Lloyd P. H. A scheme for the evaluation of diagnostic kits. Ann. Clin. Biochem. 1978; 15: 136
   PubMed Web of Science ®Google Scholar
• National Committee for Clinical Laboratory Standards, Protocol for establishing the precision and accuracy of automated analytic systems. Proposed Standard NCCLS 1975; 109035
   Google Scholar
• Meites S. Standards in clinical chemistry. Clin. Chem. (Winston-Salem, N.C.) 1973; 19: 789
   PubMed Web of Science ®Google Scholar
• Schneider P. Standards in clinical chemistry. Clin. Chem. (Winston-Salem, N.C.) 1974; 20: 92
   PubMed Web of Science ®Google Scholar
• Buttner J., Borth R., Boutwell J. H., Broughton P. M. G., Bowyer R. C. Provisional recommendation on quality control in clinical chemistry. 1. General principles and terminology. Clin. Chim. Acta 1975; 63: F25
   Google Scholar
• Anido G. Preparation of quality control materials in clinical chemistry and haematology. Proc. R. Soc. Med. 1975; 68: 624
   PubMedGoogle Scholar
• Pastewka J. V., Ness A. T. The suitability of various serum albumin products as standards for the quantitative analysis of total protein and albumin in human body fluids. Clin. Chim. Acta 1965; 12: 523
   PubMed Web of Science ®Google Scholar
• Slater L., Carter P. M., Hobbs J. R. Measurement of albumin in the sera of patients. Ann. Clin. Biochem. 1975; 12: 33
   PubMedGoogle Scholar
• Leggate J., Crooks A. E. Problems in quality control in determinations of serum total iron-binding capacity by the magnesium carbonate method. J. Clin. Pathol. 1972; 25: 905
   PubMed Web of Science ®Google Scholar
• Butler V. Disadvantages in the use of animal serum for quality control of serum iron binding capacity estimation. Clin. Chim. Acta 1973; 43: 451
   PubMed Web of Science ®Google Scholar
• Betts C. A., Stuart B. Determination of serum total iron-binding capacity. J. Clin. Pathol. 1973; 26: 457
   PubMed Web of Science ®Google Scholar
• Fraser C. G. Problems in the determination of serum total iron-binding capacity. J. Clin. Pathol. 1973; 26: 457
   PubMed Web of Science ®Google Scholar
• Fudge A. N., Fraser C. G. Evaluation of a radiometric method for the determination of total and unsaturated iron-binding capacities and serum iron. Clin. Chem. (Winston-Salem, N.C.) 1978; 24: 374
   PubMed Web of Science ®Google Scholar
• Ratcliffe W. A., Logue F. C., Ratcliffe J. G. Scottish Immunoassay Support Service Quality Control Scheme for thyroxine, triiodothyronine and digoxin assays: analysis of first 18 months' experience. Ann. Clin. Biochem. 1978; 15: 203
   PubMed Web of Science ®Google Scholar
• Borner V., Fabricius W., Marowski B. Statische qualitatskontrollen mit rinderserum als un-tersuchugsmaterial. Z. Clin. Chem. Klin. Biochem. 1970; 8: 170
   PubMedGoogle Scholar
• Peel D. Spurious potassium results obtained on sera of nonhuman origin on a Technicon flame photometer Mark IV. Ann. Clin. Biochem. 1975; 12: 215
   PubMedGoogle Scholar
• Billing B., Haslam R., Wald N. Bilirubin standards and the determination of bilirubin by manual and Technicon AutoAnalyser methods. Ann. Clin. Biochem. 1971; 8: 21
   Google Scholar
• Grannis G. F., Sherman M. L. Can quality-control sera be distinguished from patients' sera by appearance?. Clin. Chem. (Winston-Salem, N.C.) 1977; 23: 300
   PubMed Web of Science ®Google Scholar
• Proksch G. J., Bonderman D. P. Preparation of optically clear lyophilized human serum for use in preparing control material. Clin. Chem. (Winston-Salem, N.C.) 1976; 22: 456
   PubMed Web of Science ®Google Scholar
• Bonderman D. P., Proksch G. J., Bonderman P. W. Addition of triglyceride to serum for use in quality control and reference. Clin. Chem. (Winston-Salem, N.C.) 1976; 22: 1299
   PubMed Web of Science ®Google Scholar
• Proksch G. J., Bonderman D. P. Use of a cholesterol-rich bovine lipoprotein to enhance cholesterol concentrations in the preparations of serum control materials. Clin. Chem. (Winston-Salem, N.C.) 1976; 22: 1302
   PubMed Web of Science ®Google Scholar
• Proksch G. J., Bonderman D. P. A water-soluble cholesterol derivative for use in augmenting serum control materials. Clin. Chem. (Winston-Salem, N.C.) 1978; 24: 1924
   PubMed Web of Science ®Google Scholar
• Fraser C. G., Fudge A. N., Penberthy L. A. Evaluation of precision using lyophilized quality control materials. Ann. Clin. Biochem. 1978; 15: 121
   PubMed Web of Science ®Google Scholar
• Pesce M. A, Bodourin S. H. Interference with the enzymatic measurement of cholesterol in serum by use of five reagent kits. Clin. Chem. (Winston-Salem, N.C.) 1977; 23: 757
   PubMed Web of Science ®Google Scholar
• Peake M. J., Sontrop M. E., Fraser C. G. Manual and centrifugal analyzer determination of cholesterol and triglycerides with single vial enzymatic reagents. Clin. Chem. (Winston-Salem, N. C) 1978; 24: 2026
   PubMed Web of Science ®Google Scholar
• Bodansky A. Paradoxical increase in phosphatase activity in preserved serum. Proc. Soc. Exp. Biol. Med. 1932; 29: 1292
   Google Scholar
• Kaplan A., Narahara A. The determination of alkaline phosphatase activity. J. Lab. Clin. Med. 1953; 41: 819
   PubMed Web of Science ®Google Scholar
• Czarnetzy E. M., Richeal R. J., O'Malley J. A. Temperature dependent changes with time in the alkaline phosphatase activity of commercial control serum. Clin. Chem. (Winston-Salem, N.C.) 1970; 16: 521
   Web of Science ®Google Scholar
• Brojer B., Moss D. W. Changes in the alkaline phosphatase activity of serum samples after thawing and after reconstitution from the lyophilized state. Clin. Chim. Acta 1970; 35: 511
   Web of Science ®Google Scholar
• Massion C. G., Frankenfeld J. K. Alkaline phosphatase: lability in fresh and frozen human serum and in lyophilized control material. Clin. Chem. (Winston-Salem, N.C.) 1972; 18: 366
   PubMed Web of Science ®Google Scholar
• Greenberg W. V., Temple T. E. Paradoxical rise in urinary alkaline phosphatase activity during storage. Am. J. Clin. Pathol. 1967; 48: 133
   Web of Science ®Google Scholar
• Smith A. F., Fogg B. A. Possible mechanisms for the increase in alkaline phosphatase activity of lyophilized control material. Clin. Chem. (Winston-Salem, N. C) 1972; 18: 1518
   PubMed Web of Science ®Google Scholar
• Tanishima K., Minamikawa Y., Yokogawa N., Takeshita M. Protective effect of glycerol against the increase in alkaline phosphatase activity of lyophilized quality-control serum. Clin. Chem. (Winston-Salem, N.C.) 1977; 23: 1873
   PubMed Web of Science ®Google Scholar
• Hafkenscheid J. C. M., Jansen A. P. Standardization of the alkaline phosphatase determination with human placental phosphatase. Clin. Chim. Acta 1975; 59: 63
   PubMed Web of Science ®Google Scholar
• Simpson E., McAllister E. J., Hainsworth I. R. The quality control of alkaline phosphatase determinations with placental phosphate. Clin. Chim. Acta 1977; 77: 415
   PubMed Web of Science ®Google Scholar
• Hetland ø., Lund P. K. Activation of creatine kinase activity in lyophilized control materials. Scand. J. Clin. Lab. Invest. 1977; 37: 563
   PubMed Web of Science ®Google Scholar
• Feld R. D., Brown L. F., Neri B. P., Witte D. L. Effect of diluent temperature on creatine kinase values found for lyophilized controls and reference sera. Clin. Chem. (Winston-Salem, N.C.) 1978; 24: 2039
   PubMed Web of Science ®Google Scholar
• Sternberg J. A. Factors influencing precision and accuracy of glucose values obtained on control sera by the o-toluidine and oxygen rate glucose oxidase methods. Clin. Chem. (Winston-Salem, N.C.) 1972; 18: 694
   Web of Science ®Google Scholar
• Swain R. R., Carpenter R. M., Briggs S. L. Calibration of glucose methods with lyophilized materials: a caution. Clin. Chem. (Winston-Salem, N.C.) 1976; 22: 926
   PubMed Web of Science ®Google Scholar
• Babson A. L. Stated values for commercial sera may be unreliable from date of manufacture. Clin. Chem. (Winston-Salem, N.C.) 1973; 19: 1229
   Web of Science ®Google Scholar
• Sims G. The dilemmas of enzyme quality control. Cadance July/Aug., 1975
   Google Scholar
• Lott J. A. Practical problems in clinical enzymology. CRC Crit. Rev. Clin. Lab. Sci. 1977; 8: 277
   PubMed Web of Science ®Google Scholar
• Fasce C. F., Rej R., Copeland W. H., Vanderlinde R. E. A discussion of enzyme reference materials. Clin. Chem. (Winston-Salem, N.C.) 1973; 19: 5
   PubMed Web of Science ®Google Scholar
• Burger F. J., Potgieter G. M. Aspartate aminotransferase activity of some commercially available control sera, measured with and without added pyridoxal-5-phosphate. Clin. Chem. (Winston-Salem, N.C.) 1978; 24: 841
   PubMed Web of Science ®Google Scholar
• Bergmeyer H. U, Bowers G. N., Horder M., Moss D. W. Provisional recommendations on IFCC methods for the measurement of catalytic concentrations of enzymes. II. IFCC method for asparate aminotransferase. Clin. Chim. Acta 1976; 70: F 19
   Web of Science ®Google Scholar
• Jung K. D., Grutzmann K. D., Egger E., Fechner C. Suitability of commercial enzyme control sera for the quality control of activity determinations of L-aspartate aminotransferase and L-alanine aminotransferase in human serum. Clin. Chim. Acta 1977; 79: 515
   PubMed Web of Science ®Google Scholar
• McKenzie D., Henderson A. R. The quality control of serum lactate dehydrogenase isoenzyme separations using commercial quality control sera. Clin. Chim. Acta 1974; 51: 53
   PubMed Web of Science ®Google Scholar
• Klein B., Kleinman N. B., Foreman J. A. Preparation and evaluation of a water-soluble cholesterol standard. Clin. Chem. (Winston-Salem, N.C.) 1974; 20: 482
   PubMed Web of Science ®Google Scholar
• Fasce C. F., Vanderlinde R. E. Factors affecting the results of serum cholesterol determinations: an inter-laboratory investigation. Clin. Chem. (Winston-Salem, N.C.) 1972; 18: 901
   PubMed Web of Science ®Google Scholar
• Witter R. F., Kuchmak M., Williams J. H., Whitner V. S., Winn C. L. Lipids of commercial serum products offered as controls or “standards” for cholesterol and triglyceride determinations. Clin. Chem. (Winston-Salem, N.C.) 1970; 16: 743
   PubMed Web of Science ®Google Scholar
• Williams J. H., Taylor L., Kuchmak M., Witter R. F. Preparation of hypercholesterolemic and/or hypertriglyceridemic sera for lipid determinations. Clin. Chim. Acta 1970; 28: 247
   PubMed Web of Science ®Google Scholar
• Lippel K., Ahmed S., Albers J. J., Bachorik P., Muesing R., Winn C. External quality-control survey of cholesterol analyses performed by 12 lipid research clinics. Clin. Chem. (Winston-Salem, N.C.). 1978; 24: 1477
   PubMed Web of Science ®Google Scholar
• Roche P. A., Bishop C. Evaluation of the Oxford Titra-Chem, an instrument for the determination of bicarbonate, calcium, and chloride in serum. Clin. Chem. (Winston-Salem, N.C.) 1975; 21: 2000
   PubMed Web of Science ®Google Scholar
• Howarth A. T., Noble R. L., Payne R. B., Steel A. E., Teasdale P. R. The Leeds regional quality control scheme for clinical biochemistry: a progress report. J. Clin. Pathol. 1973; 26: 875
   PubMed Web of Science ®Google Scholar
• Bodansky A. Phosphatase studies, determination of serum phosphatase. Factors influencing accuracy of determination. J. Biol. Chem. 1933; 101: 93
   Google Scholar
• Steele B. W., Koehler D. F., Blaszkowski T. P., Azar M. An example of lyophilized protein-based materials not simulating patient sera. Clin. Chem. (Winston-Salem, N.C.) 1975; 21: 1812
   PubMed Web of Science ®Google Scholar
• Haven G. T., Haven M. C. Serum sodium measurement by manual and on-line dilutions. Clin. Chem. (Winston-Salem, N.C.) 1973; 19: 791
   PubMed Web of Science ®Google Scholar
• Vader H. L., Vink C. L. J. The influence of viscosity on dilution methods. Its problems in the determination of serum sodium. Clin. Chim.Acta 1975; 65: 379
   PubMed Web of Science ®Google Scholar
• Ginsberg A. L., Conrad M. E. Australia antigen in laboratory control serum solutions: an unnecessary hazard. N. Eng. J. M 1972; 287: 1097
   PubMed Web of Science ®Google Scholar
• Simon R. G., Langhofer L. A., Hendricks E. J. Australia antigen content of commercial quality-control sera. Clin. Chem. (Winston-Salem, N.C.) 1973; 19: 221
   PubMed Web of Science ®Google Scholar
• Wetli C. V., Heal A. V., Miale J. B. A previously unrecognized laboratory hazard: hepatitis B antigen-positive control and diagnostic sera. Am. J. Clin. Pathol. 1973; 59: 684
   PubMed Web of Science ®Google Scholar
• Watson D., Langley D. J., Chrystie I. L., Bertrand J., Islam M. N., Banatvala J. E. Hepatitis-B antigen and safety in pathology laboratories. Lancet 1973; 1: 985
   PubMed Web of Science ®Google Scholar
• Anido G. Australia antigen in commercial sera. Clin. Chem. (Winston-Salem, N.C.) 1973; 19: 791
   PubMed Web of Science ®Google Scholar
• Anido G. Australian antigen — transmission in laboratory. N. Eng. J. Med. 1973; 288: 160
   Google Scholar
• Gambino S. R. Australia antigen-transmission in laboratory. N. Eng. J. Med. 1972; 287: 1097
   Web of Science ®Google Scholar
• Sgouris J. T. Limitations of the radioimmunoassay for Hepatitis B antigen. N. Eng. J. Med. 1973; 288: 160
   PubMed Web of Science ®Google Scholar
• Portnoy A. L. Hepatitis-contaminated control sera. Clin. Chem. (Winston-Salem, N.C.) 1975; 21: 2004
   PubMed Web of Science ®Google Scholar
• Wenk M. D., Yoho S. HBs Ag in commercial control materials. Am. J. Clin. Pathol. 1977; 67: 197
   PubMed Web of Science ®Google Scholar
• Harrison P. B., Hardy G. Antibody to Hepatitis B surface antigen in laboratory diagnostic sera;. Am. J. Clin. Pathol. 1977; 67: 104
   PubMed Web of Science ®Google Scholar
• Hanok A., Kuo J. The stability of a reconstituted serum for the assay of 15 chemical constituents. Clin. Chem. (Winston-Salem, N.C.) 1968; 14: 58
   Web of Science ®Google Scholar
• Logan J. E., Allen R. H. Control serum preparations. Clin. Chem., (Winston-Salem, N.C.) 1968; 14: 437
   PubMed Web of Science ®Google Scholar
• Lawson N. S., Haven G. T., Moore T. D. Long-term stability of enzymes, total protein, and inorganic analytes in lyophilized quality control serum. Am. J. Clin. Pathol. 1977; 68: 117
   PubMed Web of Science ®Google Scholar
• Beeler M. F., Samuels M. S., Carrera A. E., Hood M. W., Dickinson C. S. Bacteriologic survey of lyophilized chemical quality control materials. Am. J. Clin. Pathol. 1971; 56: 676
   PubMed Web of Science ®Google Scholar
• Lawson N. S., Haven G. T., Moore T. D. Long-term stability of glucose in lyophilized quality control serum. A study utilizing data from the Quality Assurance Service (QAS) Program of the College of American Pathologists. Am. J. Clin. Pathol. 1978; 70: 523
   PubMed Web of Science ®Google Scholar
• Wilson S. S., Guillan R. A., Hocker E. V. Studies on the stability of 18 chemical constituents of human serum. Clin. Chem. (Winston-Salem, N.C.) 1972; 18: 1498
   PubMed Web of Science ®Google Scholar
• Berry R. E. Frozen versus lyophilized serum in the quality control of clinical chemistry. Am. J. Clin. Pathol. 1968; 50: 720
   Web of Science ®Google Scholar
• Wilding P., Zilva J. F., Wilde C. E. Transport of specimens for clinical chemistry analysis. Ann. Clin. Biochem. 1977; 14: 301
   PubMed Web of Science ®Google Scholar
• Thiers R. E., Gaw T. W., Reed A. H., Oliver L. K. Sample stability: a suggested definition and method of determination. Clin. Chem. (Winston-Salem, N.C.) 1976; 22: 176
   PubMed Web of Science ®Google Scholar
• Bergmeyer H. U. Standardization of enzyme assays. Clin. Chem. (Winston-Salem, N.C.) 1972; 18: 1305
   PubMed Web of Science ®Google Scholar
• Glenn G. C., Hathaway T. K. Effects of specimen evaporation on quality control. Am. J Clin. Pathol. 1976; 66: 645
   PubMed Web of Science ®Google Scholar
• Cresswell M. A. How useful is the clinical chemistry laboratory?. Lab-Lore 1976; 6: 353
   Google Scholar
• Padmore G. R. A., Gatt J. A. Between-bottle variation as a source of error in quality contro sera. Clin. Chem. (Winston-Salem, N.C.) 1970; 16: 15
   PubMed Web of Science ®Google Scholar
• Glick J. H. Osmometric estimation of vial-to-vial variation in contents of lyophilized sera. Clin Chem. (Winston-Salem, N.C.) 1977; 23: 781
   PubMed Web of Science ®Google Scholar
• Nisbet J., Jarvis A. An interlaboratory comparison of several commercial sera on the SMA 12/60. Ann. Clin. Biochem. 1973; 10: 89
   Google Scholar
• Scheider P., Cornette R. Criteria for establishing assay values in SMA 12 reference sera. Advances in Automated Analysis. Mediad Inc., New York 1973; 241, Vol. 1
   Google Scholar
• De Velasco F. Lyophilized quality control materials: factors that affect vial to vial reproducibility. Progress in Quality Control in Clinical Chemistry, G. Anido, E. J. Van Kampen, S. B. Rosalki. Hans Huber, Bern 1973; 378
   Google Scholar
• Rhoads D. G., Daughtry C. S., Franks F. Intralot variation in folate quality control sera. Clin. Chem. (Winston-Salem, N.C.) 1977; 23: 910
   PubMed Web of Science ®Google Scholar
• Dobrow D. A., Amador E. The accuracy of commercial enzyme reference sera. Am. J. Clin. Pathol. 1970; 53: 60
   PubMed Web of Science ®Google Scholar
• Morin L. G. Stated values for commercial sera may be unreliable from date of manufacture. Clin. Chem. (Winston-Salem, N.C.) 1973; 19: 1228
   PubMed Web of Science ®Google Scholar
• Attwood E. C., Zochowski G. The accuracy of commercial calibration sera and assayed control sera. Clin. Biochem. 1976; 9: 260
   PubMed Web of Science ®Google Scholar
• Gambino S. R., Fonseca I. Comparison of serum calcium measurements obtained with the SMA 12/60 and by atomic absorption spectrophotometry. Clin. Chem. (Winston-Salem, N.C.) 1971; 17: 1047
   PubMed Web of Science ®Google Scholar
• Helman E. Z., Reingold I. M., Gleason I. O. Plea for standardization of commercial calibration materials for automated instruments. Clin. Chem. (Winston-Salem, N.C.) 1971; 17: 1144
   Web of Science ®Google Scholar
• Broughton P. M. G., Simpson D., Mitchell F. L., Toothill C, Whitby L. G. An assessment of the SMA 12 (hospital model) multichannel analyzer. Clin. Chim. Acta 1968; 19: 297
   PubMed Web of Science ®Google Scholar
• Zak B. Cholesterol methodologies: a review. Clin. Chem. (Winston-Salem, N. C) 1977; 23: 1201
   PubMed Web of Science ®Google Scholar
• National Committee for Clinical Laboratory Standards, Approved Standard ACS-2; standards for calibration reference and control materials. clinical chemistry. E. Lancaster Ave., Villanova, Pa 1975; 771, 19085
   Google Scholar
• Hohnadel D. C, Sunderman F. W., Terhune P., Reid F. H., Pomper I. H. Comparisons of the precision of replicate analyses of frozen and lyophilized quality control serums. Ann. Clin. Lab. Sci. 1973; 3: 335
   PubMedGoogle Scholar
• Bowers G. N., Burnett R. W., McComb R. B. Preparation and use of human serum control materials for monitoring precision in clinical chemistry. Clin. Chem. (Winston-Salem, N.C.) 1975; 21: 1830
   PubMed Web of Science ®Google Scholar
• Teasdale P. R., Beaumont D., Parkes J. Dialyzed pooled serum and quality control. Clin. Chim. Acta 1970; 30: 535
   PubMed Web of Science ®Google Scholar
• Stevens J. F. Control materials for clinical biochemistry. Ann. Clin. Biochem. 1973; 10: 133
   Google Scholar
• Free A. H., Free H. M. Urinalysis in Clinical Laboratory Practice. CRC Press, Cleveland 1975; 37
   Google Scholar
• Becker S. M., Ramirez G., Pribor H. C., Gillen A. L. A quality control program for urinalysis. Am. J. Clin. Pathol. 1973; 59: 185
   PubMed Web of Science ®Google Scholar
• Kauffman W. Quality control of physician office laboratories. Health Lab. Sci. 1973; 284
   PubMedGoogle Scholar
• Assa A. Evaluation of urinalysis methods used in 35 Israeli laboratories. Clin. Chem. (Winston-Salem, N.C.) 1977; 23: 126
   PubMed Web of Science ®Google Scholar
• Simpson E., Thompson D. An assessment of hospital routine urinalysis. Clin. Chem. (Winston-Salem, N.C.) 1978; 24: 389
   PubMed Web of Science ®Google Scholar
• Simpson E., Thompson D. An assessment of hospital routine urinalysis. Ann. Clin. Biochem. 1978; 15: 241
   PubMed Web of Science ®Google Scholar
• Henry R. J., Cannon D. C, Winkleman J. M. Clinical Chemistry: Principles and Technics. Harper and Row, Maryland 1974; 423
   Google Scholar
• Gotelli G., Weingartner D., Marton L. J. Source of error in cerebrospinal fluid protein determination with the Du Pont Automatic Clinical Analyzer. Clin. Chem. (Winston-Salem, N.C.) 1978; 24: 173
   PubMed Web of Science ®Google Scholar
• Smith B. C., Penberthy L. A. A problem associated with measurement of total protein in cerebrospinal fluid with the Perkin-Elmer Amylase-Lipase Analyzer. Clin. Chem. (Winston-Salem, N.C.) 1979; 25: 642
   PubMed Web of Science ®Google Scholar
• Pecci J., Giovanniello T. J. Standardization of cerebrospinal fluid protein determined with the Du Pont aca. Clin. Chem. (Winston-Salem, N.C. 1978; 24: 1852
   PubMed Web of Science ®Google Scholar
• Broughton P. M. G. The future of quality control. Ann. Clin. Biochem. 1969; 6: 147
   Google Scholar
• Gibson P. R. Quality control in blood gas analyses. Lab. Equip. Dig January, 1974
   Google Scholar
• Chalmers C., Bird B. D., Whitwam J. G. Evaluation of a new thin film tonometer. Br. J. Anaesth. 1974; 46: 253
   PubMed Web of Science ®Google Scholar
• Bates R. G. The Determination of pH — Theory and Practice. John Wiley & Sons, New York 1964; 3
   Google Scholar
• Kater J. A. R., Leonard J. E., Matsuyana G. Junction potential variations in blood pH measurements. Ann. N. Y. Acad. Sci. 1968; 148: 54
   PubMed Web of Science ®Google Scholar
• Leary E. T., Delaney C. J., Kenny M. A. Use of equilibrated blood for internal blood-gas quality control. Clin. Chem., (Winston-Salem, N.C.) 1977; 23: 493
   PubMed Web of Science ®Google Scholar
• Bird B., Henderson F. A. The use of serum as a control in acid-base determination. Br. J. Anaesth. 1971; 43: 592
   PubMed Web of Science ®Google Scholar
• Rej R., Vanderlinde R. E. Proficiency testing in acid-base analyses: an interlaboratory evaluation. Clin. Chim. Acta 1973; 49: 161
   PubMed Web of Science ®Google Scholar
• Kompathy Z. L., Mathies J. C., Parker J. A., Schreiber H. A. Stability and precision of new ampouled quality-control system for pH and blood-gas measurements. Clin. Chem. (Winston-Salem, N.C.) 1976; 22: 1399
   PubMed Web of Science ®Google Scholar
• Maas A. H. J., Veefkind A. H., Van den Camp R. A. M., Teunissen A. J., Winckers E. K. A., Jansen A. P. Evaluation of ampouled tonometered buffer solutions as a quality-control system for pH, pCO2, and pO2 measurements. Clin. Chem. (Winston-Salem, N.C.) 1977; 23: 1718
   PubMed Web of Science ®Google Scholar
• Manning J. P., Sasaki D. N., Wertlake P. T. Use of control sera for monitoring temperature changes during pH and pCO2 measurements. Clin. Chem. (Winston-Salem, N.C.) 1974; 20: 1226
   PubMed Web of Science ®Google Scholar
• Minty B. D., Nunn J.F. Regional quality control survey of blood-gas analysis. Ann. Clin. Biochem. 1977; 14: 245
   PubMed Web of Science ®Google Scholar