References
- Angulo R, Costabeber I & Jodral M (1999): Organochlorine residues in milk containing Lactobacillus acidophilus. Alimentaria 300, 51–53.
- Arin˜ o A, Herrera A, Conchello MP, La´zaro R & Pe´rez C (1993): Hexachlorocyclohexane residues in meat products after processing. J. Food Comp. Anal. 6, 55–61.
- Barkatina EN, Pertsovsky AL, Murokh VI, Kolomiets ND, Shulyakovskaya OV, Venger ON & Makarevich VI (1999): Organochlorine pesticide residues in basic food products and diets in the Republic of Belarus. Bull. Environ. Contam. Toxicol. 63, 235–242.
- Bennett DA, Chung AC & Lee SM (1997): Multiresidue method for analysis of pesticides in liquid whole milk. J. AOAC Int. 80, 1065–1077.
- Bentabol A & Jodral M (1995): Determination of organo- chlorine pesticides in cheese. J. AOAC Int. 78, 94–98.
- Bernal JL, Del Nozal MJ & Jime´nez JJ (1992): Some observations on clean-up procedures using sulphuric acid and Florisil. J. Chromatogr. 607, 303–309.
- Castro M, Gasco´ n S, Pujol M, Sans JM & Vicente L (1989): Validacio´ n de me´todos anal´ıticos. In Monograf´ıa. Barce- lona, Spain: Asociacio´n Espan˜ola de Farmace´uticos de la Industria.
- Di Muccio A, Santilio A, Dommarco R, Rizzica M, Gambetti L, Ausili A & Vergori F (1990): Behaviour of 23 persistent organochlorine compounds during sulphuric acid clean-up on a solid-matrix column. J. Chromatogr. 513, 333–337.
- Doong RA & Lee CY (1999): Dietary intake and residues of organochlorine pesticides in foods from Hsinchu, Taiwan. J. AOAC Int. 82, 677–682.
- Ejobi F, Kanja LW, Kyule MN, Muller P, Kruger J, Nyeko JHP & Latigo AAR (1996): Organochlorine pesticide residues in cow’s milk in Uganda. Bull. Environ. Contam. Toxicol. 56, 551–557.
- Gopal M & Mukherjee I (1993): Determination of residues of endosulfan and endosulfan sulfate on eggplant, mustard and chickpea. Pestic. Sci. 37, 67–72.
- Herna´ndez LM, Ferna´ndez MA, Jime´nez B, Gonza´lez MJ & Garc´ıa JF (1994): Organochlorine pollutants in meats and cow’s milk from Madrid (Spain). Bull. Environ. Contam. Toxicol. 52, 246–253.
- Herrera A, Arin˜ o A, Conchello P, La´zaro R, Bayarri S, Pe´rez-Arquillue´ C, Garrido MD, Jodral M & Pozo R (1996): Estimates of mean daily intakes of persistent organochlorine pesticides from Spanish fatty foodstuffs. Bull. Environ. Contam. Toxicol. 56, 173–177.
- Joshi DD, Pathak HD & Dikshith TSS (1998): Organo- chlorine pesticide residues in milk of two distinct agro- geoclimatic regions of Uttar Pradesh, India. Natl. Acad. Sci. Lett. 21, 30–32.
- La´zaro R, Bayarri S, Conchello P, Arin˜ o A & Herrera A (1995): Comparacio´ n de dos te´cnicas anal´ıticas de extrac- cio´ n de materia grasa para la determinacio´ n de residuos organoclorados en alimentos. Grasas Aceites 46, 35–38. Liao W, Joe T & Cusick WG (1991): Multiresidue screening method for fresh fruits and vegetables with gas chromato- graphic/mass spectrometric detection. J. AOAC 74, 554–565.
- Martinez P, Angulo R, Pozo R & Jodral M (1997): Niveles de HCB en leches naturales, Alimentaria, 34, 99–101.
- Menezes ML & Felix G (1996): Analysis of organochlorine pesticides in plain milk using direct injection on an ISRP column, with column switching. J. Liq. Chromatogr. Relat. Technol. 19, 3221–3228.
- Ministry of Agriculture, Fisheries and Foodstuffs (1995): Orden de 29 de noviembre de 1995 del Ministerio de Agricultura Pesca y Alimentacio´ n (M.A.P.A). Por la que se establecen los principios uniformes para la evaluacio´n y autorizacio´ n de productos fitosanitarios, Bol. Oficial Estado 289, 35072–35085.
- Mukherjee I & Gopal M (1993): Organochlorine pesticide residues in dairy milk in and around Delhi. J. AOAC Int. 76, 283–286.
- Mukherjee I & Gopal M (1996): Chromatographic techni- ques in the analysis of organochlorine pesticide residues. J. Chromatogr. A 754, 33–42.
- Ner´ın C, Torne´s AR, Domen˜ o C & Cacho J (1995): Determination of organochlorine pesticides in animal diet: a comparative study of clean-up procedures. Fres. J. Anal. Chem. 352, 364–371.
- Schenck FJ, Calderon L & Saudarg D (1996): Florisil solid- phase extraction cartridges for cleanup of organochlorine pesticide residues in foods. J. AOAC Int. 79, 1454–1458. Valverde A, Gamo´ n M, Medina M., Grases JM, Marzana I, Rodr´ıguez JM, Lombardero J & Serrahima E. (1997): Criterios generales de calidad de procedimientos para ana´lisis de residuos de plaguicidas en alimentos, Alimen- taria, 34, 29–32.
- Waliszewski SM & Szymczynski GA (1982): Simple, low- cost method for determination of selected chlorinated pesticides in fat samples. J. AOAC 65, 677–679.
- Waliszewski SM, Pardio VT, Waliszewski KN, Chantiri JN, Aguirre AA, Infazo´ n RM & Rivera J (1997): Organo- chlorine pesticide residues in cow’s milk and butter in Mexico. Sci. Total Environ. 208, 127–132.
- Wong S & Lee W (1997): Survey of organochlorine pesticide residues in milk in Hong-Kong (1993-1995). J. AOAC Int. 80, 1332–1335.