查询词典 reagent

The effects of cryopreservation (-196℃) on the antioxidant activities of enzymes (SOD, CAT, GSH-PX and GR) in seminal plasma and spermatozoa of Russian sturgeon Acipenser gueldenstaedti were studied by a reagent kit to clarify damage mechanism of spermatozoa.

为了探讨超低温(-196℃)对精子的损伤机理，采用试剂盒测定了冷冻前后俄罗斯鲟精浆和精子中超氧化物歧化酶、过氧化氢酶、谷胱甘肽过氧化物酶和谷肽甘肽还原酶等酶活性。

A novel tetrafunctional reagent for protein modification was successfully synthesized by L-glutamic acid and adipic acid, and it was characterized by H1-NMR and FTIR.

以L-谷氨酸和己二酸为原料合成了一种新型的四官能团蛋白质修饰剂，并用核磁共振和红外光谱对其结构进行了表征。

Amino-2-methylpropanol was used as the chemical modifying reagent of fatty acids to modify the carboxyl group into nitrogen-containing heterocycle which would effectively prevent the migration of carbon double bonds of the alkenyl in the electron impact source.

以2-氨基－2-甲基－丙醇为脂肪酸的化学修饰试剂，气相色谱－电子轰击质谱分析葵子油脂肪酸。2-氨基－2-甲基－丙醇将脂肪酸羧基修改为含氮杂环，使在EI源中避免了链烯基中碳碳双键的移动。

Amino-2-methylpropanol was utilized as a chemical modifying reagent to modify carboxyl groups in unsaturated fatty acids into nitrogen-containing heterocycles, which effectively suppressed the migration of double bonds of the alkenyl within the electron impact source and led to regular informative mass spectra indicative of the position of the olefinic bonds in the chain.

以2-氨基－2-甲基丙醇为脂肪酸的化学修饰试剂，将不饱和脂肪酸羧基化学修饰试剂，将不饱合脂肪酸羧基化学修饰成含氮杂环，从而避免了链烯基中碳碳双键在EI源中的移动，并使质谱呈现显示双键位置的规范信息。

During the low temperature plasma polymerization, different factors (reaction power, pulse duty factor, reaction time, bias voltage and pressure) were investigated to get the best film. The results of X-ray photoelectron spectroscopy and Fourier transformed infrared spectoscopy implied that polymer nano-film containing carboxyl or amido were deposited successfully by using allylamine or acrylic acid as a reagent, respectively.

低温等离子聚合过程中，研究了反应的功率、脉冲占空比、反应时间、偏压、反应室压强这五个因素对薄膜性质的影响，确定了最佳的工艺参数。X光电子能谱和傅立叶转换红外光谱分析结果表明，以丙烯胺和丙烯酸为反应物可以在样品表面分别得到含有羧基或氨基的有机薄膜。

The terminal allylation reaction was studied which was influenced by reaction time, reaction temperature, category and dosage of allylation reagent and molecular weight of polyether.

其次对双羟基聚醚的端烯丙基化反应进行研究，讨论了反应时间、反应温度、聚醚分子量、烯丙基化试剂的种类和用量对反应的影响。

Special equipment, instrument, meter and materials copper-clad aminate, ink,stencil, film, chemical reagent and additive etc.

各类生产印制电路板的专用设备、仪器、仪表及专用生产材料和配件

Fluorometric Determination of Trace Copper with A New Fluorescent Reagent 5-(4-Fluorophenylazo)-8-Salicylidene Aminoquinoline.

新型荧光试剂 5-(4-氯苯偶氮)-8-水杨醛缩氨基喹啉的合成及荧光性质。安徽师范大学学报， 2001，24(4)，353-355

The main reaction mechanisms are illustrated in determination of ammoniacal nitrogen by nessler's reagent colorimetric method, six common problems about the method are discussed and solution methods are summarized in this paper.

阐述了纳氏试剂比色法测定氨氮实验中涉及的各反应过程原理，对实验中常见的6个问题分别作了探讨，提出了解决办法。

Methods: Both IFN-γ and ADA of 80 specimens of pleural effusions (40 cases of tuberculosis pleural effusions and 40 cases of malignant pleural effusions) were analyzed by enzyme linked immunosorbet assay and ammoniacal reagent method.

用酶联免疫吸附分析法和氨试剂法检测80例胸腔积液（40例结核性积液和40例癌性积液）中IFN-γ水平和腺苷脱氨酶活性，并将IFN-γ检测结果与ADA测定结果进行对比。

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。