查询词典 residues

A method for the determination of organophosphorous and carbamate pesticide residues in soil was performed by GC-MS.

研究了气相色谱法同时测定土壤中多种有机氯和拟除虫菊酯类农药残留量。

This method is sensitive, fast and accurate and it could satisfy high sensitive analysis of methyl carbamate residues in liquor.

该方法的灵敏度高、操作简便、快速，满足白酒中痕量氨基甲酸甲酯农残的高灵敏分析。

By contrast, organophosphate, carbamate and pyrethroid pesticide residues can be removed easily because of their instability.

有机磷类、氨基甲酸酯类及拟除虫菊酯类农药稳定性相对较差，不同操作对其有很好的去除作用。

Thermogravimetric results indicate that the IFR takes part in the decomposition reactions of PP and promotes it to carbonize as the IFR PP undergoes heating and burning. Elemental analysis and infrared spectrum of the burnt residues and swollen char reveal that the phosphorus is m...

元素分析和红外光谱结果表明，IFR－PP受热燃烧时磷主要积聚在燃烧端面并以磷酸及其相应的铵盐存在，它们的形成与IFR受热燃烧时的一系列变化有关，并有助于焦化物的进一步炭化和提高材料的阻燃性能。

Objective］The research aimed to study on optimal extraction process of starch from cassava residues.

［目的］研究木薯渣残余淀粉的优化提取工艺。

Total RNA was extracted from flowers of cattleya, according to the conserved acid sequence for ACC oxidase in other orchids, we designed a pair of oligo nucleotide primers. Using RT-PCR method, a cDNA fragment about 967 base pair, which encoded 321 predicted amino acid residues, was amplified.

以卡特兰花瓣为试材，提取其总RNA，并根据其他兰花的ACC氧化酶(1-aminocyclopropane-1-carboxylic acid oxidase， ACO)基因保守序列设计一对特异性引物，通过RT-PCR法克隆得到1条967bp的卡特兰ACO cDNA片断，共编码321个氨基酸残基。

Objective To establish a rapid GC method for determination of pyrethroid pesticide residues in celery cabbage.

目的：建立气相色谱测定大白菜中5种常见拟除虫菊酯农药残留简单、快速、安全的实用型方法。

Methods: Sample preparation with acetic ether-QuEChERS, and then five kinds of pesticide residues in celery cabbage were determined by gas chromatography with electron detector.

采用乙酸乙酯－QuEChERS法进行样品前处理，结合气相色谱－电子捕获检测器对大白菜中5种常见拟除虫菊酯农药残留进行检测分析。

The association between the G residues requires that two of them change the orientation of the base with regard to the sugar (from the usual anti to the unusual syn configuration).

我们不知道端粒的互补链是如何组装的，但是我们可以假设它用终止G-T发夹的3'-OH作为DNA合成的引物来合成。

The principle of chemiluminescence analysis and the recent development of antibiotic residues determination were summarized.

评述了化学发光分析的原理及各体系在抗生素残留检测上的最新研究进展。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。