光度

The results showed that Kaidimycin was chemically neutral, macrocylic polylactones, stable and liable to dissolve into water and pyridine, slight to dissolve into methanol, ethanol and N-butanol, difficult to dissolve into ethyl acetate, acetone, benzene and chloroform. Chemical reaction of functional group of Kaidimycin showed that it had glycoside, amino acid and aldehyde, no reducing sugar, polypeptide and phenol.

凯地菌素属中等极性的、中性抗生素，极性纸层析结果与多烯类抗生素的纸层析结果相似：易溶于水、吡啶，微溶于甲醇、乙醇、正丁醇，不溶于乙酸乙酯、丙酮、苯、三氯化碳；对高温、光照和紫外处理有很好的稳定性；官能团反应试验结果发现，凯地菌素可能含有糖苷键、氨基酸伯氨基和醛基，不含有还原糖、多肽和酚基，高锰酸钾、浓硫酸反应与多烯大环内酯类抗生素的特性相似；并且依据纯品，采用生物法和分光光度法对摇床发酵液进行了效价的测定。

Silicon in fuel oil reacts with aminosulfonic acid and form a violet component in the medium of tartaric acid and sulfuric acid.

以氨基磺酸为显色剂，用分光光度法测定燃料油中硅含量。

The organic acid content for Mongolian Oak wood vinegar (5.20%) was the biggest, but the smallest for White Birch wood vinegar (2.02%) among three types of wood ...

紫外吸收光谱表明桦木木醋液、柞木醋液和杂木醋液的300倍稀释液在近紫外区的最大吸光度分别为0.400，0.352和0.541；柞木醋液氨基酸总量最高(63.6mg/g)，桦木醋液氨基酸总量最低(57.0mg/g)。

In the absence of coorperative effect, the reaction between lectin molecules and their receptors on cell surface can be described as below when equilibrium is reached:In which LT denotes total lectin concentration, LF free lectin concentration, mva-lency of lectin, ni number of receptors with affinity constant Ki to lectin, CT total lectin concentration.

本文提出一个描述细胞与多价凝集素反应的平衡关系式和用紫外分光光度法测定游离凝集素浓度求受体数量及其与凝集素的亲合常数的方便方法。

The effect of several factors of air agitation such as pore distance, air distributor length Lbp,wind quantum Q,time t and the tube distance of two-tubes distribution on U was measure.

本文对槽内溶液空气搅拌的浓度场进行了研究。在一长方体的有机玻璃的空气搅拌槽内，加入色素，选择有代表性的12个点，定点、定时取样，再作光度测定。这些定性及定量的结果，为优化生产设计提供了一些经验规律和理论上的依据

A novel determination method of trace chromium in waste water by dual-wavelength spectrophotometry was established based on the fact that chromium can react with alizarin blue S to form red complex in H2SO4 medium.

在H2SO4介质中，铬与茜素蓝S形成红色产物，据此建立了双波长分光光度法测定废水中痕量铬的新方法。

This paper determined the content of urinary MTs and cadmium in different crowd by RLS method using alizarin red and graphite furnace atomic absorption spetrophotometry respectively.

用本文建立的茜素红共振光散射法和石墨炉原子吸收分光光度法分别测定了不同环境人群尿中MTs和Cd的含量。

ABSTRACT The content of kanamycin sulfate was determined by charge tranfer reactions between kanamycin sulfate and alizarin red. The optimum condition and ratio of the complex component were decided.

研究了卡那霉素与茜素红的荷移反应，测定了荷移络合物在不同条件下的吸光度值，确定了最佳条件和络合物的组成。

Methods: Spectrophotometric determination of the condiment amino nitrogen, the results of the impact analysis of factors, and with formaldehyde titration method of comparison.

采用分光光度法测定调味品中的氨基酸态氮，对影响测定结果的因素进行分析，并与甲醛滴定方法进行了比较。

A highly sensitive method for the spectrophotometric determination of microamounts of aluminum by salicylfluorone and cetyltrimethyl- ammonium bromide is proposed.

本文提出一种用水杨基萤光酮和溴化十六烷基三甲基铵分光光度测定微量铝的高灵敏方法。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了