This paper describes the compound type of bean card coagulant applied to make bean curd, experimental principle and operating method for the determination of lead content in coagulant.
本文报导复合型豆腐凝固剂用于制造豆腐，对凝固剂进行铅含量测定的实验原理和操作方法。
A method for the determination of tellurium in lead-tellurium sediment by flame atomic absorption spectrometry is established. The experimental conditions for determination of tellurium are optimized.
建立了空气-乙炔火焰原子吸收光谱法测定铅碲渣中碲，研究了各项实验条件。
The laser reflection photoacoustic method was designed for the determination of aniline in water. The basic principle, the experimental setup and the influencing factors were discussed in detail.
提出了用激光反射光声法测定水样中的苯胺，对方法原理、实验装置以及苯胺的最佳显色条件进行了详尽的讨论。
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