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- Keywords monitoring water sample by GC;solid phase extraction;Di-octyl phthalate;condition optimum; 水样GC测定;固相萃取;邻苯二甲酸二辛酯;条件优化;
- monitoring water sample by GC 水样GC测定
- The detection method for various enteroviruses in water sample by RTPCR with universal primers was established. 建立了一种利用通用引物RT-PCR技术检测水中肠道病毒的方法。
- A method of determination of trace level of butyltin species in water samples by preconcentration with sulfhydryl cotton and a combination technique (GC AAS) was established. 建立了巯基棉预富集、气相色谱－原子吸收联用技术测定水样中痕量丁基锡化合物的方法。
- Filter 500 ml water sample by a dry filter paper; then dry the filter paper and weigh it. Calculate the amount of total suspended solids. 用一张已被干燥及已知重量的滤纸过滤500亳升水样本,把滤纸焗干后再秤。计算总悬浮物的含量。
- A method was established for trace BHC,DDT and heptachlor eqoxide in water sample by gas chromatography-mass spectrometry with solid-phase extraction. 建立了固相萃取-气相色谱/质谱联用测定水中痕量六六六、滴滴涕和环氧七氯的方法。
- A method for the determination of total phosphorus in circulating water samples by on-line microwave digestion and flow injection spectrophotometry is described. 利用流动注射分析技术并采用微波在线消解水样,建立了一种在线测定循环水中总磷的快速分析方法。
- The method was established for the determination of some trace elements in soil and water sample by inductively coupled plasma mass spectrometry (ICP-MS). 摘要建立了一种用电感耦合等离子质谱(ICP-MS)测定土壤和灌溉水中微量元素的方法。
- The content of muscone was determined by GC. 用气相色谱法测定麝香酮的含量。
- Determination of trace arsenic from water sample by hydride atom absorption, and effect of valence number of arsenic and varied coexisting ions on the determination were discussed. 采用氢化物原子吸收法测定样品中痕量砷,对于样品的前处理及采用氢化物法测定砷含量时,砷的不同价态及共存离子的影响,分别进行了探讨。
- Unsaturated fatty acid was determined by GC. 不饱和脂肪酸的测定采用气相色谱法;
- Comparing the results of static experiments,the removal effects of humic acids in simulated water sample by single ozonation process and activated carbon catalytic ozonation process were analyzed. 针对模拟水样中的腐植酸,采用静态实验对比的方法,分析了单独臭氧氧化和活性炭催化臭氧氧化去除腐植酸的效果。
- Fatty acids in seeds of Punica granatum are analyzed by GC. 用气相色谱分析石榴籽油的脂肪酸组成,共检出6种脂肪酸。
- The paper discusses some problems during determining dissolved organic carbon (DOC) in sea water samples by TOC analyzer and corresponding solutions. 本文探讨了用TOC分析仪测定海水样品中溶解有机碳时的一些问题和解决对策。
- A system of Ce(SO4)2H2SO4 for determination of COD in natural water samples by reversed flow injection analysis is discussed. 研究了Ce（SO4）2?H2SO4体系反向流动注射分析法测定环境水中化学需氧量（COD）的试验条件。
- Method Measuring the content of VMA and F1VA in the urine by GC. 方法采用气相色谱法定量尿中VMA、HVA含量。
- Write now to this address and we will send you a free sample by return. 按此地址函索即免费寄奉样品。
- METHODS The contents of isomers were determined by GC method. 方法采用GC进行了含量测定。
- The sample was etherified in 10% H2SO4-CH3OH, followed by extraction with CH2Cl2, and determined by GC. 采用10%25的硫酸甲醇对样品进行衍生化,用二氯甲烷萃取,最后进行气相色谱分析。
- The detection limit of this method is 0.09 ppb, recovery is 91.4-108.0%. The results of the determination of some natural water samples by this method were in accordance with that from the graphite furnace atomic absorption spectroscopic method. 本法的检测限达0.;09ppb;水样测试的精密度良好;回收率91
