Malik A K, Malik A K
Dayanand Anglo Vedic College, Department of Chemistry, Jalandhar, Punjab, India.
J AOAC Int. 2000 Jul-Aug;83(4):971-5.
A procedure was developed for the determination of iron(III) dimethyldithiocarbamate by converting it into iron(II)-bathophenanthroline-tetraphenylborate complex, which was then adsorbed onto microcrystalline naphthalene. The absorbance was measured at 534 nm against a reagent blank. Beer's Law was obeyed over the concentration range of 0.4-20 microg mL in final solution. Ten replicate determinations on 70 microg ferbam solutions gave a mean absorbance of 0.36, with a relative standard deviation of 0.91%. The method is sensitive and highly selective. It was applied for the determination of ferbam in a commercial sample and in mixtures with various dithiocarbamates (ziram, zineb, maneb) and wheat grains.
开发了一种测定二甲基二硫代氨基甲酸铁（III）的方法，即将其转化为铁（II）-邻二氮菲-四苯基硼酸盐络合物，然后将其吸附到微晶萘上。以试剂空白为参比，在534nm处测量吸光度。最终溶液中铁（III）的浓度在0.4 - 20μg/mL范围内符合比尔定律。对70μg福美铁溶液进行十次重复测定，平均吸光度为0.36，相对标准偏差为0.91%。该方法灵敏且选择性高。已用于测定市售样品以及与各种二硫代氨基甲酸盐（福美锌、代森锌、代森锰）和小麦籽粒混合物中的福美铁。
