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用于分光光度法测定硼的显色试剂常用的有四羟基蒽醌、洋红、姜黄素等,这些试剂要求在浓酸中或蒸干脱水显色,对器皿和测定条件要求严格,操作不便。近年来,国外已开始应用甲亚胺—H酸作为硼显色剂,直接在水溶液中测定,操作方便,设备要求简单,适于大批量样品分析。但目前在我国应用不够广泛,对测定条件和影响因素研究不多。
Used for spectrophotometric determination of boron color reagent commonly used in four hydroxyanthraquinone, magenta, curcumin, these reagents require concentrated acid or evaporated to dry color, the requirements of the vessel and the determination of the conditions, the operation inconvenience. In recent years, foreign countries have begun to use azomethine-H acid as a boron color reagent, measured directly in aqueous solution, easy to operate, simple equipment, suitable for high-volume sample analysis. However, it is not widely used in our country at present, and there are not many studies on the measurement conditions and influencing factors.