Formica G
J Assoc Off Anal Chem. 1984 Sep-Oct;67(5):896-901.
An analytical procedure is described for determination of residues of bromopropylate (BP) and its main degradation product 4,4'-dibromobenzophenone (BBP) in honey. The method also allows the determination of 4,4'-dibromobenzilic acid (BBA), a potential intermediate to BBP. The method involves dissolution of the honey in water and separation of BP and BBP from BBA on a partition column. BP and BBP are further cleaned up and separated on a silica gel column and determined by gas chromatography (GC) with electron capture (EC) detection. BBA is oxidized with potassium dichromate to BBP, which is partitioned into dichloromethane and further cleaned up on a silica gel column before determination by GC with EC detection. The method is sensitive to 0.02 mg BP or BBP/kg and 0.023 mg BBA/kg honey.
本文描述了一种用于测定蜂蜜中溴螨酯（BP）及其主要降解产物4,4'-二溴二苯甲酮（BBP）残留量的分析方法。该方法还可测定4,4'-二溴苯乙醇酸（BBA），它是BBP的一种潜在中间体。该方法包括将蜂蜜溶解于水中，并在分配柱上从BBA中分离出BP和BBP。BP和BBP进一步在硅胶柱上进行净化和分离，然后通过带有电子捕获（EC）检测的气相色谱（GC）进行测定。BBA用重铬酸钾氧化为BBP，后者被分配到二氯甲烷中，并在硅胶柱上进一步净化，然后通过带有EC检测的GC进行测定。该方法对蜂蜜中0.02 mg BP或BBP/kg以及0.023 mg BBA/kg具有灵敏度。
