方法:试样经涂膜使用温度下干燥、冷冻硬化粉碎,4%乙酸浸泡处理,石墨炉原子吸收测定胶粘剂可溶性钡、镉、铬、铅含量。
Methods:Samples were dried at room temperature after coating films, followed by freezing, hardening. 4% acetic acid was used to extract metals in treated samples.
通过铬酸氧化丙醇制酯法,研究在硫酸-乙酸体系中,乙酸丙酯及丙酸丙酯的形成机理,及相关影响因素。
Through chromium sour oxidize propyl alcohol system ester law study in sulphuric acid acetic acid system in, proply acetate and proply propanoate form mechanism, and related influencing factor.
通过铬酸氧化丙醇制酯法,研究在硫酸-乙酸体系中,乙酸丙酯及丙酸丙酯的形成机理,及相关影响因素。
Through chromium sour oxidize propyl alcohol system ester law study in sulphuric acid acetic acid system in, proply acetate and proply propanoate form mechanism, and related influencing factor.
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