定量测定

Methods measure plasma D-dimer and fibrinogen levels of 320 tumor patient and 30 normal adult,Measure plasma D-dimer levels was using Latex Agglutinative test.measure plasmafibrinogen 1evels was using semiautomatic coagulometer.

取32 0例5种常见恶性肿瘤患者和30例对照组的静脉血，采用乳胶凝集半定量法测定血浆D- dimer，采用半自动血凝仪检测Fg含量。

The aliquot was determined and confirmed by gas chromatography-negative chemical ionization mass spectrometry using external standard method.

样品中三唑醇残留物由正己烷饱和的乙腈(含1%冰醋酸)提取，加入无水硫酸镁与无水醋酸钠振荡促使提取液分层后进行固相分散萃取净化，用气相色谱-负化学离子源质谱法进行测定与确证，外标法定量。

Results: Muscone, androsterone and cholesterol in both natural and man made musk were analyzed quantitatively simultaneously by GC/MS, which was highly selective to the components to be determined by selecting the characteristic fragments.

结果 ：采用GC/MS法同时测定了天然麝香及人工麝香中的麝香酮、雄甾酮及胆固醇含量，该法通过选择特征碎片定量，对待测组分有很高的专属性。方法学研究表明以上方法实用、准确。

Methods On the conditions of strong acid and calefaction,urea can react on antipyrine and diacetyl monoxime and become yellow which can be determined by colorimetric analysis in 450 nm with the ALLIANCE FUTURA continuous flow injection auto analysis system.

方法根据尿素在强酸和加热条件下与安替比林及二乙酰一肟反应呈黄色，在450nm比色定量的原理，选用FUTURA流动注射分析仪对游泳池水中的尿素进行测定，进行余氯干扰试验，并将该方法与二乙酰一肟安替比林法进行比较。

Methods:180 HCV patients and 40 healthy controls were selected for the research, and their serum BAFF levels were detected by ELISA. The level of serum HCV-RNA in HCV patients was detected through fluorescent quantitative polymerase chain reaction and analyzed along with the clinical data of HCV patients.

选取180名HCV感染者及40名健康对照，应用酶联免疫吸附法测定血清中BAFF含量，荧光定量聚合酶链反应检测HCV感染者血清中HCV-RNA的水平，并结合HCV感染者临床情况分析。

The reason of white band formation in the solidified shell in the mold has been studied by means of water modeling test and the analysis of the solidified microstructure of practical CC slab an.

为了定量把握结晶器中的钢水流动、钢水过热度及结晶器传热阻力对初期凝固坯壳的凝固不均一的影响，利用水冷铜板的浸渍实验，测定了各种铸造条件下的凝固坯壳厚度、凝固不均一度及树枝晶偏角；利用水力模型实验，并对实机铸坯的凝固组织分析，EPMA对负偏析带的线分析，得出了在结晶器中凝固坯壳上负偏析带的产生原因。

Methods: The method used direct sampling technique to determinate chloroform, bromodichloromethan, dibromochloromethane, bromoform, which was seperated by tube column, detected by electronic capture detector and determined by inner standard method.

水样直接进样，用毛细管柱色谱分离，电子捕获检测器检测，采用内标法定量，可同时测定水中三氯甲烷、一溴二氯甲烷、二溴一氯甲烷和溴仿。

Assessment of calcaneum bone quality and quantity using quantitative ultrasound can be an effective method in screening and preventing of osteoporosis in aged cohort.

近年来发展起来的定量超声法(Quantitative ultrasound，QUS)利用超声对物质密度、结构及材料的特征表现来评价骨的质量，已被证实与双能X线骨密度测定(Dual一cnergy X一ray absorptiometry，DXA)具有良好的相关性，因而成为一种适宜于在大规模人群中筛选骨质疏松高危患者的经济、方便的检测方式l，幻。

In the determination of methyl acrylate,butyl acrylate and methyl methacrylate in ambient air,the sample was absorbed with active carbon and resolved with carbon bisulfide,and then determined by GC.

测定环境空气中的丙烯酸甲酯、丙烯酸丁酯和甲基丙烯酸甲酯时，气样采用活性炭吸附，用二硫化碳解析，直接进气相色谱仪检测，根据保留时间定性，外标法定量，能获得良好的线性和较低的方法检出限，不仅精密度、灵敏度和重复性良好，而且可操作性强，易于在环境监测系统中推广。

In the determination of methyl acrylate,butyl acrylate and methyl methacrylate in ambient air,the sample was absorbed with active carbon and resolved with carbon bisulfide,and then determined by GC.After the qulitation by retention time and quantitation by external standard method,the good linearity and low detection limit were got.

测定环境空气中的丙烯酸甲酯、丙烯酸丁酯和甲基丙烯酸甲酯时，气样采用活性炭吸附，用二硫化碳解析，直接进气相色谱仪检测，根据保留时间定性，外标法定量，能获得良好的线性和较低的方法检出限，不仅精密度、灵敏度和重复性良好，而且可操作性强，易于在环境监测系统中推广。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。