All the vessels are cleaned by chromic acid lotion to avoid the dimethyl (o - ) phthalate in the environment to pollute the samples.
实验过程中采用铬酸洗液对实验器皿进行清洗，有效防止环境中邻苯二甲酸酯类物质对样品的污染。
This standard solution was accurately prepared in super-clean laboratory with dimethyl o-phthalate and sub-packed in 5ml ampoules.
本标准溶液以邻苯二甲酸二甲酯在超净实验室中准确配制并分装于5毫升安瓿中。
This standard solution was accurately prepared in super-clean laboratory with dimethyl o-phthalate and sub-packed in 5ml ampoules.
本标准溶液以邻苯二甲酸二甲酯在超净实验室中准确配制并分装于5毫升安瓿中。
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