Abstract

We developed a procedure for the gas-chromatographic determination of impurities in phosphorus oxychloride (POCl₃) after the preliminary hydrolysis of the base and microextraction of impurities of organic and organochlorine substances with n-hexane. Impurities of chloroform, trichloroethylene, tetrachloroethylene, carbon tetrachloride, and benzene were identified. The degree of the microextraction of impurities is 0.17–0.76. The limits of detection for the impurities are at the level of 0.00009–0.007 mg/L, which is 4–300 times lower than those achieved previously.

中文翻译：

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微萃取预富集气相色谱法分析高纯三氧化二磷

摘要

我们开发了一种程序的在磷酰氯杂质（三氯氧磷的气相色谱测定₃的与有机和有机氯物质的杂质的碱和微初步水解之后）ñ -己烷。确定了氯仿，三氯乙烯，四氯乙烯，四氯化碳和苯的杂质。杂质的微萃取度为0.17–0.76。杂质的检出限为0.00009–0.007 mg / L，比以前的检出限低4–300倍。