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巴比妥酸分光光度法测定水中吡啶施小平１胡恩航２陈守建１测定吡啶的方法有色谱法〔１〕、电化学法及比色法等。其中色谱法虽较灵敏，但操作复杂不利于推广，故通用的方法还是比色法。本文在吡啶－巴比妥酸比色法测定氰化物的基础上，根据其反应原理〔２〕用氯化氰－巴比...
Barbituric acid spectrophotometric determination of pyridine in water Shi Xiaoping 1 Hu Enhang 2 Chen Shoujian 1 Determination of pyridine methods [1], electrochemical and colorimetric method. Chromatography, although more sensitive, but the operation is not conducive to promotion of complex, so the general method is colorimetric. In this paper, pyridine-barbiturate colorimetric method for the determination of cyanide, based on its reaction principle 〔2〕 with cyanogen chloride - barb ...