BAZI GIDALARDA MANEBİN (MANGAN ETİLENBİSDİTİYOKARBAMAT) ALEVLİ ATOMİK ABSORPSİYON SPETROMETRİ İLE DOLAYLI TAYİNİ

Gıdalarda manebin dolaylı tayini için basit, duyarlı ve hızlı bir alevli atomik absorpsiyon spektrometrik (FAAS) yöntem açıklanmıştır. Manebin bozunmasıyla açığa çıkan mangan FAAS ile tayin edilmiş ve mangan ve maneb arasındaki stokiyometrik ilişkiden yararlanarak maneb içeriği hesaplanmıştır. Önerilen yöntem, maneb tayini için su, domates, buğday ve ticari ilaç numunelerine başarıyla uygulanmıştır. Bağıl standart sapma ve bağıl hata %4’ten daha küçük ve maneb için gözlenebilme sınırı yaklaşık 2 µg/mL’dir

Anahtar Kelimeler:

Maneb, dolaylı tayin, atomik absorpsiyon spektrometrik yöntem, domates, buğday

INDIRECT DETERMINATION OF MANEB (MANGANESE ETHYLENEBISDITHIOCARBAMATE) IN SOME FOODS BY FLAME ATOMIC ABSORPTION SPECTROMETRY

ABSTRACTA simple, sensitive and rapid flame atomic absorption spectrometric (FAAS) method for the indirect determination of maneb in foods was described. Manganese liberated by the decomposition of maneb has been determined by FAAS and the maneb content has been calculated by using stoichiometric relationship between manganese and maneb. The method has been successfully applied to the analysis of water, tomato, wheat grain and commercial drug samples for the determination of maneb. Relative standard deviation and relative error were lower than 4% and the limit of detection was about 2 μg/mL for maneb.

Keywords:

Key Words: Maneb, indirect determination, atomic absorption spectrometry, tomato, wheat grain,

PDF

___

D. Barceló, Environmental Analysis: Techniques, Applications and Quality Assurance, Elsevier, Amsterdam (1993).
Kapoor, J., Kumar, A., Gupta U. and Rao, A.L.J.,” Spectrophotometric determination of maneb by ternary complex formation with PAR and CTAB”, Talanta, 41: 2061-2065 (1994).
Committee for Analytical Methods for Residues of Pesticides and Veterinary Products in Foodstuffs of the Ministry of Agriculture, Fisheries and Food, “Determination of residue of dithiocarbamate pesticides in foodstuffs by a headspace method”, Analyst, 106: 782-787 (1981).
Bardarov, V. and Zaikov, C., “Application of high-performance liquid chromatography with spectrophotomeric and electrochemical detection to the analysis of alkylenebis(dithiocarbamates) and their metabolites”, J. Chromatogr., 479: 97-105 (1989).
Rao, A.L.J., Malik, A.K. and Kapoor J., “Extraction spectrophotometric determination of maneb with 1-(2’- pyridylazo)-2-naphtol (PAN)”, Talanta, 40: 201-203 (1993).
Malik, A.K. and Rao, A.L.J.,” Spectrophotometric determination of iron (III) dimethyldithiocarbamate (ferbam)”, Talanta, 44: 177-183 (1997).
Kesari, R. and Gupta, V. K., “A sensitive spectrophotometric method for the determination of dithiocarbamate fungicide and its application in environmental samples”, Talanta, 45: 1097-1102 (1998).
Mathew, L., Rao, T.P., Iyer C.S.P. and Damodaran, A.D.,”Spectrophotometric determination of ziram (dithiocarbamate fungicide) by thiocyanate and rhodamine 6G method”, Talanta, 42: 41-43 (1995).
Ulakhovich, N.A., Medyantseva, E.D., Froleva, V.F. and Romanova, O.N.,”Application of catalytic currents of hydrogen for complexes of metals with sulphur –containing ligands in extraction voltammetry”, Zh. Anal. Khim. 38: 1963-1968 (1983).
Gustafsson, K.H. and Fallgren, C.H., “Determination of dithiocarbamate fungicides in vegetable foodstuffs by high- performance liquid chromatography”, Agric. Food Chem., 31: 461-463 (1983).
Ruiz, T. P., Martinez, L. C., Thomas, V. and Casajus, R., “Flow injection fluorimetric determination of nabam and metham”, Talanta, 43: 193-198 (1996).
Verna, B. C., Sidhu, H.S. and Sord, R.K.,”Determination of thiuram disulphide and analysis of thiuram disulphide- dithihocarbamate mixtures”, Talanta, 29: 703-705 (1982).
Ponomarev A.S. and Shtykov S.N.,”Determination of pesticides and other physiologically active compounds by capillary gas chromatography with an atomic deterctor using standard reference materials”, J. Anal. Chem., 55: 47-51 (2000).
Irth, H., De Song, D.L., Brinkman, U.A.Th., and Frei, R.W.,”Metallic copper -containing post-column reactor for the detection of thiram and disulfiram in liquid”, J. Chromatogr., 370: 439-447 (1986).
Malik, A.K. and Faubel, F.,”Capillary electrophoretic determination of dithiocarbamates and ethyl xanthate”, Fresenius J. Anal. Chem,. 367: 211-214 (2000).
Malik, A.K. and Rao, A.L.J., “Spectrophotometric determination of ziram, ferbam and zineb with diphenylcarbazone”, Talanta, 38: 941-944 (1991).
Alpdoğan, C. and Sungur, S., “Indirect determination of some analgesic-inflammatory drugs by AAS”, Anal. Lett. 32: 2799-2808 (1999).
Jiang, Y. C., Zhang, Z.Q. and Zhang, J., “Flow-injection on-line concentrating and flame atomic absorption spectrometry for indirect determination of ascorbic acid based on the reduction of iron (III)”, Anal. Chim. Acta, 435: 351-355 (2001).