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Spectrophotometric determination of ferbam using 4-(2'-pyridylazo)resorcinol
被引:0
|作者:
Kapoor, J
[1
]
Sharma, R
[1
]
Rao, ALJ
[1
]
机构:
[1] PUNJABI UNIV, DEPT CHEM, PATIALA 147002, PUNJAB, INDIA
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中图分类号:
O6 [化学];
学科分类号:
0703 ;
摘要:
A direct spectrophotometric method has been reported for ferric dimethyldithiocarbamate (ferbam) by complexation with 4-(2'-pyridylazo)resorcinol in the pH range 8.5-10.5.The sensitivity of the method is enhanced by the addition of a micellar solution of Triton X-100. Beer's law is obeyed over the concentration range 5-102 mu g/10 ml. The values of molar absorptivity and Sandell's sensitivity are 3.0 x 10(4) dm(3) mol(-1) cm(-1) and 0.0139 mu g cm(-2) respectively. The method has been tested for the determination of ferbam in commercial samples, crops and grains in the presence of various other ions, dithiocarbamates and xanthates.
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页码:1011 / 1013
页数:3
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