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Original Article

Evaluation of a new semiautomatic electrode system for simultaneous measurement of ionized calcium and pH

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Pages 407-415 | Received 29 Dec 1981, Accepted 24 Mar 1982, Published online: 17 Mar 2010

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F Mimouni & R C Tsang. (1994) Neonatal hypocalcemia: to treat or not to treat? (A review).. Journal of the American College of Nutrition 13:5, pages 408-415.
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. (1993) Bibliography. Scandinavian Journal of Clinical and Laboratory Investigation 53:sup214, pages 11-21.
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Göran Lindstedt, Ernst Nyström, Per-Arne Lundberg, Eva Johansson & Robert Eggertsen. (1992) Screening of an Elderly Population in Primary Care for Primary Hyperparathyroidism. Scandinavian Journal of Primary Health Care 10:3, pages 192-197.
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C. B. Kancir, P. H. Petersen & T. Madsen. (1989) Effects of erythrocytes, bicarbonate, temperature and albumin on in vitro ionized calcium variations with pH. Scandinavian Journal of Clinical and Laboratory Investigation 49:5, pages 475-482.
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J. Thode, B. Juul-Jørgensen, H. M. Bhatia, M. Kærulf-Nielsen, P. D. Bartels, N. Fogh-Andersen & O. Siggaard-Andersen. (1989) Comparison of serum total calcium, albumin-corrected total calcium, and ionized calcium in 1213 patients with suspected calcium disorders. Scandinavian Journal of Clinical and Laboratory Investigation 49:3, pages 217-223.
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J. Wandrup, C. Kancir & P. Hyltoft Petersen. (1988) Ionized calcium and acid-base status in arterial and venous whole blood during general anaesthesia. Scandinavian Journal of Clinical and Laboratory Investigation 48:2, pages 115-122.
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Nina Nelson, Orvar Finnström & Laşse Larsson. (1987) Neonatal reference values for ionized calcium, phosphate and magnesium. Selection of reference population by optimality criteria. Scandinavian Journal of Clinical and Laboratory Investigation 47:2, pages 111-117.
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J. Thode. (1985) The calcium ion activity and the standardized excretion rate of calcium in urine of healthy adults. Scandinavian Journal of Clinical and Laboratory Investigation 45:4, pages 327-334.
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A. Uldall, N. Fogh-Andersen, J. Thode, A. B. T. J. Boink, J. Kofstad, L. Larsson, S. Narvanen, K. O. Pedersen & T. Weber. (1985) Measurement of ionized calcium with five types of instruments. An external quality assessment. Scandinavian Journal of Clinical and Laboratory Investigation 45:3, pages 255-261.
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J. Thode, N. Fogh-Andersen, F. Aas & O. Siggaard-Andersen. (1985) Sampling and storage of blood for determination of ionized calcium. Scandinavian Journal of Clinical and Laboratory Investigation 45:2, pages 131-138.
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J. Thode, S. Nistrup Holmegaard & O. Siggaard Andersen. (1984) Serum ionized calcium, nephrogenous and total urinary cyclic AMP and urinary phosphate in normal subjects. Scandinavian Journal of Clinical and Laboratory Investigation 44:2, pages 111-118.
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J. Wandrup, C. Kancir & B. Nørgaard-Pedersen. (1984) The concentration of free calcium ions in capillary blood from neonates on a routine basis using the ICA 1. Scandinavian Journal of Clinical and Laboratory Investigation 44:1, pages 19-24.
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L. Larsson, O. Finnström, B. Nilsson & S. Öhman. (1983) Evaluation of Radiometer ICA1 as a routine instrument for serum ionized calcium and its application for whole blood capillary samples from newborn infants. Scandinavian Journal of Clinical and Laboratory Investigation 43:sup165, pages 21-26.
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T.A. Wilson, S.C. Garner & J.J.B. Anderson. (2000) Dietary protein source and serum estradiol concentrations of rats during pregnancy, lactation and post-lactation. Nutrition Research 20:12, pages 1735-1747.
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Philippe Bühlmann, Ernö Pretsch & Eric Bakker. (1998) Carrier-Based Ion-Selective Electrodes and Bulk Optodes. 2. Ionophores for Potentiometric and Optical Sensors. Chemical Reviews 98:4, pages 1593-1688.
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Ahmed Mahgoub, Philip F. Hirsch & Paul L. Munson. (1997) Calcium-lowering action of glucocorticoids in adrenalectomized-parathyroidectomized rats. Endocrine 6:3, pages 279-283.
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Sanford C. Garner, John J.B. Anderson, Mei-Heng Mar & Indu Parikh. (1991) Estrogens reduce bone loss in the ovariectomized, lactating rat model. Bone and Mineral 15:1, pages 19-31.
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Jack H. Ladenson. (1991) Journal of Bone and Mineral Research. Journal of Bone and Mineral Research 6:S2, pages S33-S41.
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K. Kölling. (2010) Die ionisierte Calciumfraktion des Blutes: Abhängigkeit von verschiedenen methodischen Faktoren 1 . Journal of Veterinary Medicine Series A 38:1-10, pages 629-638.
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Tai-Chan Peng, Jane B. Lian, Philip F. Hirsch & Robert P. Kusy. (1991) Lower serum osteocalcin in ethanol-fed rats. Journal of Bone and Mineral Research 6:2, pages 107-115.
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John J.B. Anderson, Sanford C. Garner, Mei-Heng Mar, Agna Boass, Svein U. Toverud & Indu Parikh. (1990) The ovariectomized, lactating rat as an experimental model for osteopenia: calcium metabolism and bone changes. Bone and Mineral 11:1, pages 43-53.
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Sanford C. Garner, Agna Boass & Svein U. Dr. Toverud. (1989) Hypercalcemia fails to suppress elevated serum parathyroid hormone concentrations during lactation in rats. Journal of Bone and Mineral Research 4:4, pages 577-583.
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Gerardo J. Sanchez, Pankaja S. Venkataraman, Robert W. Pryor, Michael K. Parker, Henry D. Fry & Kenneth E. Blick. (1989) Hypercalcitoninemia and hypocalcemia in acutely ill children: Studies in serum calcium, blood ionized calcium, and calcium-regulating hormones. The Journal of Pediatrics 114:6, pages 952-956.
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C. B. Kancir, T. Madsen, P. H. Petersen & D. Stokke. (2008) Calcium, magnesium and phosphate during and after hypothermic cardiopulmonary bypass without temperature correction of acid base status. Acta Anaesthesiologica Scandinavica 32:8, pages 676-680.
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Claude B. Kancir, Per Hyltoft Petersen, Tommy Madsen & Anders S. Olesen. (1988) In vivo and in vitro ionized calcium variations induced by acute respiratory acid base disturbances. Clinica Chimica Acta 175:3, pages 307-313.
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Sanford C. Garner, Tai-Chan Peng & Svein U. Toverud. (1988) Modulation of serum parathyroid hormone and ionized calcium concentrations during reproduction in rats fed a low calcium diet. Journal of Bone and Mineral Research 3:3, pages 319-323.
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C. B. Kancir, Hyltoft Petersen & J. Wandrup. (1987) Plasma ionized calcium during paediatric anaesthesia: Effects of pH and succinylcholine. Canadian Journal of Anaesthesia 34:4, pages 391-394.
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C. B. Kancir, P. H. Petersen & J. Wandrup. (2008) The effects of plasma volume variations on the calcium concentration during epidural anaesthesia. Acta Anaesthesiologica Scandinavica 31:4, pages 338-342.
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Sharon R. Siegel & Anthony Hadeed. (1987) Renal handling of calcium in the early newborn period. Kidney International 31:5, pages 1181-1185.
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Naomi Eidelman, Laurence C. Chow & Walter E. Brown. (1987) Calcium phosphate saturation levels in ultrafiltered serum. Calcified Tissue International 40:2, pages 71-78.
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Peter W. Alexander & Javapa Koopetngarm. (1987) Flow-injection determination of phosphate species in detergents with a calciumion-selective electrode. Analytica Chimica Acta 197, pages 353-359.
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A. L. Levin, M. Yu. Andrianova, I. P. Ermakova, I. A. Pronchenko & I. M. Lanskaya. (1986) Differential effects of pH, pCO2, and protein concentration on plasma calcium ion level and algorithm for calculating its standardized value. Bulletin of Experimental Biology and Medicine 102:6, pages 1697-1700.
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Pankaja S. Venkataraman, Kenneth E. Blick, Radhakrishna Rao, Henry D. Fry & Michael K. Parker. (1986) Decline in serum calcium, magnesium, and phosphorus values with oral glucose in normal neonates: Studies of serum parathyroid hormone and calcitonin. The Journal of Pediatrics 108:4, pages 607-610.
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B. Lund, P. Charles, C. Egsmose, Bj. Lund, F. Melsen, L. Mosekilde, T. Storm, H. Søndergård, J. Thode & O. H. Sørensen. (1985) Changes in vitamin D metabolites and bone histology in rats during recovery from rickets. Calcified Tissue International 37:5.
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B. W. Allen & G. G. Somjen. 1985. Ion Measurements in Physiology and Medicine. Ion Measurements in Physiology and Medicine 111 117 .
Richard Merten, Karl-Georg von Boroviczény & Rainer Haeckel. 1985. Methoden-, Reagenzien- und Geräte-Evaluation in der Laboratoriumsmedizin. Methoden-, Reagenzien- und Geräte-Evaluation in der Laboratoriumsmedizin 433 460 .
Richard Merten, Karl-Georg von Boroviczény & Rainer Haeckel. 1985. Methoden-, Reagenzien- und Geräte-Evaluation in der Laboratoriumsmedizin. Methoden-, Reagenzien- und Geräte-Evaluation in der Laboratoriumsmedizin 391 432 .
Jiří Koryta. (1984) Theory and applications of ion-selective electrodes. Analytica Chimica Acta 159, pages 1-46.
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Peter M.G. Broughton, Timothy J.N. Carter & Penelope M.S. Clark. (1983) Instrumentation. Clinical Biochemistry 16:6, pages 317-329.
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Jørgen Thode, Niels Fogh-Andersen, Mads Siggaard-Andersen & Ole Siggaard-Andersen. (2016) Donnan Effect or Protein Interference in Ionised Calcium Measurements?. Annals of Clinical Biochemistry: International Journal of Laboratory Medicine 20:5, pages 271-273.
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Niels Fogh-Andersen, Peter Steen Frederiksen, Erik Arthur Andersen & Jøorgen Thode. (1983) Relation between ionised calcium and pH in infants with acute acid-base disturbances. Clinica Chimica Acta 130:3, pages 357-361.
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