sodium-absorption ratio

Through the study on the synthetic process, the optimum technological conditions were obtained, which were as follows: the molar ratio of cyclohexanone to sodium perborate tetrahydrate was 1 ∶ 1.5, the reaction temperature was 80 ℃ and the reaction time was 3 h.

通过对ε己内酯合成工艺条件的研究，得到了最佳合成工艺条件：环己酮与过硼酸钠四水化合物摩尔比为1∶1.5，反应时间3h，反应温度80℃。

Immunocytochemistry showed Bcl-2 and Bax increased while Bax increased even more in Diclofenac sodium and Ketorolac tromethamine, so the ratio of Bax/ Bcl-2 increased.

免疫细胞化学显示二者作用后Bcl-2和Bax均增加，但Bax增加更明显，从而Bax/Bcl-2比值明显增加。

Sugar replacer method for the estimation of conversion ratio of sodium alginate product

从糖到糖的替代品褐藻胶转化率检验法

Titrimetric analysis of phytate by back titration with nitric thorium is remedied by standard sodium phytate. According to the experiment result, it is deduced that the ratio of thorium ions and phytate in the complex formed is 3 ∶ 1.Therefore the calculation formula is corrected properly.

采用标准植酸钠对硝酸钍返滴定法测定植酸含量的方法进行了验证，实验结果表明，钍离子与植酸根的络合比为3∶1，从而对计算公式作出了校正。

Acrylonitrile and sodium hydrosulfide were used as main materials for the synthesis of β-mercaptopropionic acid. The influences of four factors ( the mole ratio of the raw materials, the addition reaction temperature, the hydrolysis time, the powdered sulfur usage) were investigated.

以丙烯腈和硫氢化钠为主要原料，通过正交试验考察了原料摩尔比、加成反应温度、水解时间及硫粉用量4种因素对合成β巯基丙酸收率的影响。