光度测定

In this experiment, the content of total flavones in soybean, black bean and soybean sprout were measured using the spectrophotometric method, and distilled water, 70% methanol, 70% ethanol and 70% acetone were chosed as the extraction solvents.

以蒸馏水、70%甲醇、70%乙醇、70%丙酮作为提取剂，用分光光度法测定黄豆、黑豆、黄豆芽中总黄酮的含量。

The simultaneous determination of benzaldehyde and benzoic acid in electrosynthetic products by ultraviolet spectrophotometry was established.

建立了一种同时测定电合成产物中苯甲醛和苯甲酸含量的紫外分光光度法。

To establish an ultraviolet spectrophotometry for the determination of the sodium benzoate in fruit and vegetable salt .

建立以紫外分光光度法测定果蔬盐中苯甲酸钠含量的方法。

Key words: compound fertilizer; determination; biuret; spectrophotometry; interference matter

濮阳市氯碱厂，河南濮阳 457000 复合肥；测定；缩二脲；分光光度法；干扰物质

The equation of rapid determination sesame cake protein by improving biuret method is as follows: Y=0.1559X+0.0012, the protein concentration range from 0.75 mg/mL to 3.78 mg/mL displayed better linear with absorption value.

改良双缩脲法快速测定饼粕蛋白提取率的方程为：Y=0.1559X+0.0012，蛋白浓度在0.75~3.78mg/mL之间与吸光度值成良好线性。

The method is based on the catalytic effect of trace formaldehyde on the reaction between potassium bromate and Azur A .

研究了在H2SO4介质中，微量甲醛对KBrO3氧化天青A 有较强的催化作用，建立了催化光度法测定微量甲醛的新方法。

A new color-fading spectrophotometric method for determining trace amount of bromate was developed.

基于6mol/L盐酸介质中溴酸根氧化甲苯胺蓝的退色反应，建立了测定微量溴酸根的新的退色光度分析方法。

Based on the catalytic effects of trace formaldehyde on the reaction between potassium bromate and oxidized azur A,a new catalytic spectrophotometric method has been developed in this paper.

基于在一定温度和硫酸介质中，痕量甲醛对溴酸钾氧化天青A 有较强的催化作用，建立了测定痕量甲醛的新的催化光度法。

Based on the inhibitory effect of trace Ti on the oxidation of fuchsin acid by potassium bromate,a new kinetic spectrophotometric method for the determination of trace Ti has been developed.

利用Ti对溴酸钾氧化酸性品红的抑制作用，建立了动力学光度法测定痕量Ti的新方法。

Methods: Cadmium column and acid-base resisting burette with knob-operated control were used to determine nitrate and nitrite in milk product.

目的：建立镉柱还原分光光度法测定奶制品中硝酸盐和亚硝酸盐的方法。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。