查询词典 dihydrostreptomycin

This HILIC-MS/MS method is sensitive and specific to monitor and analyze of streptomycin and dihydrostreptomycin residues in honey.

结论该HILIC-MS／MS法灵敏、专属，适用于监测和分析蜂蜜中链霉素和双氢链霉素的残留量。

Objective A specific and sensitive liquid chromatography-tandem mass spectrometry method was developed to determine streptomycin and dihydrostreptomycin residues in honey.

目的建立一种专属、灵敏的液相色谱-串联质谱法测定蜂蜜中链霉素和双氢链霉素的残留量。

The immunological traits such as titer,affinity,sensitivity and specificity of this mAb were characterized.The results showed that the conjugation ratio of SM to BSA in SM artificial antigen was about 25∶1.The titer of supernatant hybridoma cell lines of 3F9-C4 was 1∶3.2×10~2 by indirect ELISA.The isotypes in ascites was IgG_(2a)/κ,the affinity constant was 8.4×10~(11)L/mol,IC50 was 8.99μg/L,cross-reactivity to dihydrostreptomycin was 109.6% and little cross-reactivity to other compounds.

结果表明，BSA-SM人工抗原分子结合比为1∶25；筛选出3F9-C4敏感特异的杂交瘤细胞1株，间接ELISA测定细胞培养上清，效价为1∶3.2×102，同种型为IgG2a/κ；腹水的亲和常数为8.4×1011L/mol；IC50为8.99μg/L，与双氢链霉素交叉反应为109.6%，与其他SM结构相似物和功能近似物无交叉反应性。

The immunological traits such as titer, affinity, sensitivity and specificity of this mAb were characterized. The results showed that the conjugation ratio of SM to BSA in SM artificial antigen was about 25:1. The titer of supernatant hybridoma cell lines of 3F9-C4 was 1:3.2×10^2 by indirect ELISA. The isotypes in ascites was IgG(subscript 2a)/k, the affinity constant was 8.4×10^11L/mol, IC50 was 8.99μg/L, cross-reactivity to dihydrostreptomycin was 109.6% and little cross-reactivity to other compounds.

结果表明，BSA-SM人工抗原分子结合比为1：25；筛选出3F9-C4敏感特异的杂交瘤细胞l株，间接ELISA 刚定细胞培养上清，效价为l：3.2×10^2，同种型为IgG(下标 2a)/k腹水的亲和常数为8.4×10^11L/mol；IC50为8.99μg/L，与双氢链霉素交叉反应为109.6%，与其他SM结构相似物和功能近似物无交叉反应性。

In this experiment,mCZB medium added in penicillin and dihydrostreptomycin was used as control group, the effect of the Chinese medicines component Berberine and Baicalin on 2-cell embryos in vitro culture from the mice were compared respectively.

试验以添加抗菌素的mCZB液为对照组，分别筛选比较了小檗碱、黄芩苷二种中药成分对小鼠2-细胞胚胎体外培养效果的影响。

In this experiment,mCZB medium added in penicillin and dihydrostreptomycin was used as control group, the effect of the Chinese medicines component Berberine and Baicalin on 2-cell embryos in vitro culture from the mice were compared respectively.

北京农学院动物科技系，北京 102206）摘要：试验以添加抗菌素的mCZB液为对照组，分别筛选比较了小檗碱、黄芩苷二种中药成分对小鼠2-细胞胚胎体外培养效果的影响。

In this experiment,mCZB medium added in penicillin and dihydrostreptomycin was used as control group, the effect of the Chinese medicines component Berberine and Baicalin on 2-cell embryos in vitro culture from the mice were compared respectively.

小檗， 胚胎，细胞，小鼠，效果摘要：试验以添加抗菌素的mCZB液为对照组，分别筛选比较了小檗碱、黄芩苷二种中药成分对小鼠2-细胞胚胎体外培养效果的影响。

It has streptomycin and dihydrostreptomycin crossing rate of 100 %, simple sample pre-treatment including water dilution of milk sample and extraction with buffering phosphoric acid solution and pH regulation of pork and kidney sample, fast detection, high detection sensitivity up to 11.2 microgram/L and other advantages, and may be used in detection of residual streptomycin and similar medicines in animal food products.

本发明的检测链霉素药物的酶联免疫试剂盒为多残留检测试剂盒，链霉素和双氢链霉素的交叉率为100％；对样品的前处理要求低，样品前处理过程简单，牛奶样品用水稀释后可直接测定，猪肉和肾脏经磷酸缓冲液抽提后调pH即可上样，并且能同时快速检测大批样品；测定方法简单，省时，牛奶样品在1小时之内可得出测定结果；最低检测限达11.2μg/L，具有高特异性、高灵敏度、高精确度、高准确度等特点，可在动物性食品链霉素药物残留检测中发挥重要作用。

Methods Streptomycin and dihydrostreptomycin were extracted from honey samples using a liquid extraction with a phosphate buffer followed by a solid-phase extraction based on weak cation-exchange columns. After sample preparation, the hydrophilic interaction chromatography was used to retain streptomycin and dihydrostreptomycin on the column for the separation of the analytes from endogenous compounds. The aminoglycosides were detected and quantified with electrospray ionization tandem mass spectrometry.

方法用磷酸盐缓冲溶液提取蜂蜜中的链霉素和双氢链霉素后，经弱阳离子交换柱进行固相萃取，样品制备后采用亲水作用色谱，使链霉素和双氢链霉素实现保留，从而与内源性物质达到分离，采用电喷雾离子化串联质谱法检测和定量。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。