测定法

A analytical method was proposed for simultaneous determination of arsenic and antimony in steel by hydride generation double channel atomic fluorescence spectrometry.

建立了一种氢化物发生双道原子荧光光谱法同时测定钢中痕量砷和锑的方法。对实验条件进行了优化，在最佳工作条件下，砷和锑的检出限分别为0.012 ng/g和0.034 ng/g，RSD分别为1.24%和1.97%。将本法应用于钢中的砷和锑的测定，采用加标回收实验控制方法的准确性，砷的回收率为96%~98%，锑的回收率98%~102

METHODS:The measurment procedure was carried out using pH 8 phosphate salt buffer as solvent.Phenol red was determined by dual wavelength spectrophotometry at 558 nm and 570 nm. Tinidazole was determined by multiple regression spectrophotometry at 290,300,318 nm and 340 nm.

以pH 8磷酸盐缓冲液为溶剂，采用双波长法在558 nm和570 nm测定酚红，以多元回归分光光度法在290，300，318，340 nm测定替硝唑。

The conditions for L-tryptophan determination, such as buffer pH value, buffer concentration and applied voltage were investigated.

应用高效毛细管电泳法对发酵液中L-色氨酸的含量进行了测定，研究了检测波长、缓冲液pH值、缓冲液浓度、分离电压对L-色氨酸测定的影响。

Therefore, the nickel impurity in the chromium-plating bath was determined using spectrophotometry, which was based on the reaction between nickel ions and diacetyldioxime, generating a red complex, in the presence of alkali and ammonium per-sulfate. The measurement was carried out in 3cm color-matching cells at a wavelength of 510nm, using the sample without chromogenic agent as the reference.

在碱性和过硫酸铵存在的条件下，镍离子与丁二酮肟生成水红色配合物，利用这一特性，以丁二酮肟光度法测定镀铬溶液中镍杂质的含量，以不加显色剂的试样作参比液，用3cm比色皿，在波长510nm处测定。

METHODS: Fasting serum levels of IL6, IL8, TNFα were measured in 30 cases of T2DM with insulin resistance and 30 cases of T2DM without insulin resistance and 26 normal control subjects by enzymelinked immunosorbent assay.

采用酶联免疫吸附法测定T2DM伴有IR患者30例和不伴有IR患者30例及正常对照26例的空腹血清白细胞介素6（IL6），白细胞介素8（IL8）及肿瘤坏死因子的浓度，并同时测定空腹血糖、糖化血红蛋白（GHbA1c）及空腹胰岛素水平，分析其与IL6，IL8，TNFα的相关性。

The effect of mixed culture solid fermentation of Candida tropicalis ZD-3 and Aspergillus niger ZD-8 on detoxification of cottonseed cake,as well as the effect of sodium carbonate and minerals on the reduction of free gossypol and crude protein contents were investigated during the mixed culture fermentation of CSC by detection of protein disappearance rate in vitro.

通过测定发酵底物中游离棉酚、粗蛋白质含量，体外法测定饲料蛋白质消失率等方法研究热带假丝酵母ZD-3(Candida tropicalisZD-3)与黑曲霉ZD-8(Aspergillus nigerZD-8)复合固体发酵对棉籽饼粕脱毒效果的影响；碳酸钠以及矿物质处理对棉籽饼复合发酵脱毒效果的影响。

In this paper,the method for determining the COOH in PET has been introduced by three electrode potential titration .

采用三电极电位法，对以苯酚-四氯乙烷为溶剂测定聚酯中端羧基进行了实验和探讨，并建立了端羧基测定的新方法，此方法的相对标准偏差为 2 78%，可用于聚酯中端羧基测

The batch activated sludge method was used to determine autotrophs maximum growth rate. In addition, affecting factors were also investigated.

采用间歇式活性污泥法测定了自养细菌最大增长速率，分析了测定过程中的影响因素。

Six crossbred steers (Simmental×Indigenous yellow cattle) with cannulas in rumen,duodenum and terminal ileum are used for determining the effects of feeding level on synthesis efficiency of rumen microbial protein.

用6头装有瘤胃、十二指肠、回肠瘘管的西门塔尔杂交阉牛，以Cr2O3为指示剂测定食糜流量，用嘌呤氧化法测定RNA当量，研究不同饲养水平下，西门塔尔杂交阉牛瘤胃微生物蛋白的合成效率。

Eleven α-V-group cation-substituted toluenes (1) and acetophenones (2)were synthesized. The equilibrium acidities of these compounds were determined indimethyl sulfoxide solution by the "Overlapping Indicator Method" and the homolytic C-Hbond dissociation energies were derived from a thermodynamic cycle combining pKawith oxidation potential of carbanion.

合成了α-位有第V、Ⅵ主族元素杂正离子取代基的甲苯系列（1）和苯乙酮系列（2）共11个Ylide前体化合物，用重迭指示剂法首次测定了其在二甲亚矾溶剂中的酸性解离常数PKa，同时结合碳负离子氧化电位的测定，通过热力学循环估测了它们的气相均裂键能。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。