查询词典 chromatographic

Such standard substances will prove to be the strong technical assistance to ensuring liquor gas chromatographic analysis ,liquor production,and liquor product qualit.

该标准物质将为白酒气相色谱分析、白酒生产和产品质量提供保证。

The influence of chromatographic conditions (carrier gas and oven temperature) on the separation was investigated.

考察了色谱条件对催化汽油中各种烃类以及硫化物分离的影响，在定性了300多个烃类组分的同时，定性了催化汽油中的60多个硫化物。

With gas chromatographic and mass spectrum analysis technology,the chemical composition of biomass tar and its distillation s were analyzed.

主要采用色谱-质谱联机成分分析法对生物质焦油及其馏分试样进行成分分析。

A reverse-phase high performance liquid chromatographic method with C18 Hypersil ODS column for the simultaneous determination of hydroxy acids including lactobionic acid,glycollic acid,tartaric acid,lactic acid,malic acid and citric acid in cosmetics,was studied.

采用反相高效液相色谱法同时测定化妆品中乳糖酸、乙醇酸、酒石酸、乳酸、柠檬酸和苹果酸等6种羟基酸。

Pesticides were extracted from tea with hexane-acetone (volume ratio is 1:1) in an ultrasonic bath and cleaned up on a Florisil and neutral alumina column, then were determined by gas chromatography with negative chemical ionization mass spectrometric detection in the selected ion monitoring mode, and with heptachlor epoxide as the internal standard. Spiked blank samples were used as standards to counteract the matrix effect observed in the chromatographic determination.

茶叶试样用V/V=1/l混合提取剂超声提取，经Florisil矽藻土和中性氧化铝混合层析柱净化后，以环氧七氯为内标物，采用GC-NCI-MS的选择离子监测方式分析；探讨了茶叶试样的基体诱导色谱响应增强影响所产生的分析误差及其减小的措施，用空白试样基体匹配校准曲线法定量分析。

A normal-phase liquid chromatographic method has been developed for determination of tocopherols and tocotrienols in hull-less barley.

本论文以裸大麦为原料，研究与探讨了生育三烯酚的分析检测、提取分离及对超氧阴离子自由基损伤人脐静脉内皮细胞的防护作用，主要实验结果如下

The QSERR modelings have good stability and accuracy for prediction of the chromatographic retention of α-amino acids on the crown chiral stationary phase.

建立的QSERR模型具有较好的稳定性和预测能力。

Preious chromatographic analysis of colonic mucins from monozygotic twins with inflammatory bowel disease suggested a genetic mucin alteration in ulceratie colitis.

先前对患有炎症性肠病的单卵双生患者结肠粘蛋白的色谱分析表明溃疡性结肠炎存在有粘蛋白的遗传性改变。

The good results can be obtained with the newalgorithm; the local minimal can be avoided in some degree. In this paper, neural networks also were applied to quantitativestructure-property relationships analysis:1Studies on the toxicity of aniline, nitrobenzene and phenol derivatives and their structures.2 Studies on HEPT compounds for their anti-aids.3 Studies on nitrogen mustards and 2-formylpyridine thiosemicarbazone compounds for their anti-cancer.4 Studies on phenol and aniline derivatives for their gas chromatographic retention values.5 Studies on discrimination of tea by Self-organizing feature map network.

本论文还利用上述方法进行了一些定量结构活性相关性研究，主要内容： 1环境中有毒有害有机物的定量结构活性相关性研究。2抗艾滋病类药物定量结构活性相关性研究。3抗肿瘤类药物(氮芥子气类化合物和2-甲酸吡啶缩氨基硫脲类化合物)定量结构活性相关性研究。4苯酚和苯胺类衍生物色谱比移值预测。5将神经网络用于茶叶的分类。

This paper reports the gas chromatographic analysis of gas hydrocarbons possibly produced by the radiation degradation of N,N-dimethylhydroxylamine and N,N-diethylhydroxylamine, porous layer open tubular column coated with aluminum oxide and flame-ionization detector are used.

将氧化铝毛细柱与氢火焰离子化检测器联用，研究了羟胺衍生物辐射降解产物中气态烃类的气相色谱分析方法。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。