测定法

PAHs ratios are used to identify the source of PAHs, the result showed that the major source of 16 PAHs in Urumqi Xinshi district was coal-bustion and vehicle discharges . Mercury in TSP samples were digested by aqua regia and analyzed by AFS analyzer .The results showed that : the concentration of mercury was 0.869-1.91 ng m-3.Compared with other cities in the rest of the world , the concentration of mercury was very high. The concentration of mercury in heating season was lower than that in no-heating season.

对大气颗粒物样品中的汞，采用王水于特弗龙消解罐中加热消解的方法进行处理，稀酸定容后采用原子荧光光谱法对样品中的汞进行测定，测定结果为。869-1.91 ng m-3，与国外城市相比较高；实验测得非采暖期乌鲁木齐大气颗粒物汞浓度的均值高于采暖期颗粒物中的汞浓度，其原因可能是由于随着非采暖期温的升高，长期积累在土壤、水体环境中的汞向大气中释放，附着在颗粒物上，过了燃煤的影响。

The principle, method and tool to determine the fluidity of thermoplastics using Archimedean spiral method are introduced.

主要介绍阿基米德螺旋线法测定热塑性塑料流动性能的原理、测定方法和工具，对注射成型系数的影响因素进行了探讨，可供指导生产实践参考。

The principle,testing method and mould for measuring the thermoplastics fluidity and cavity pressure by Archimedean spiral method are introduced.

主要介绍了阿基米德螺旋线法测定热塑性塑料流动性能和模腔压力的原理、测定方法和工具，并对注射成型系数的影响因素进行了探讨，可供生产实践参

Experiment on determination of trace Argentum in copper concentrace ore was done.

对湖南省麻阳铜矿铜精矿中的微量银作了原子吸收光谱法测定试验，研究了铜对银的测定的干扰，并提出了消除干扰的方法。

Oxygen consumption rate and asphyxiant point of Dugesia japonica under the temperature of 10 ℃,14℃,18℃,22℃,26℃,and 32℃ were assayed respectinely and!the relationship between oxygen consumption rate at 10℃and 14℃ was much low and was high at 18℃,26℃and 32℃.

应用静水呼吸室法，测定10℃、14℃、18℃、22℃、26℃和32℃温度下日本三角涡虫的耗氧率和窒息点，并测定涡虫耗氧率是否与温度和昼夜节律有关。

With the development of science and technology, sensitive, rapid, reproducible, simple and accurate analytical methods are required for the determination of trace elements in geological, biological and environmental samples. The direct determination of extremely low concentration of trace element with modern atomic spectroscopic method, such as atomic absorption spectrometry is so difficult. On one hand, the limitations are associated not only with the insufficient sensitivity of these techniques but also with matrix interference.

随着科学技术技术的发展，在进行地质、环境、生物等样品中痕量金属元素的测定时，常常要求达到ppb级的水平，虽然火焰原子吸收分光光度法具有很高的灵敏度，但是要直接测定这些样品中的痕量组分却很难，这是因为，一方面，样品本身的物理化学状态有的不适合直接测定，或组分的含量低于分析方法的灵敏度；另一方面是存在基体干扰。

This agreement shows that the method is available to complete the determination of atomic weight.

原子量测定结果的重合，说明 MC一ICP/MS绝对测量法同样可以完成原子量的测定。

It includes determination of properties of the acid protease and lipase, application of acid enzymes to processes of bating pickling pelt and wet blue of sheepskins, analysis of activities of collagenase in acid protease and trypsin. Comparison was conducted to acid bating and common bating. Orthogonal experiments were used to determine influence of some factors in acid bating on qualities of leather. Scanning electronic microscope was used to observe separating of collage fibers.

对酸性蛋白酶、酸性脂肪酶的性能进行了测定；将其用于绵羊服装革生产的酸性软化及蓝湿皮软化中，利用正交试验法研究了酸性酶软化各因素对成革质量的影响，并与常规酶软化进行了对比；用扫描电镜观察了酸性酶软化后胶原纤维的分散情况；对酸性蛋白酶的分子量进行了测定，对比了酸性蛋白酶与胰酶中的胶原酶活力，以说明酸性酶软化与胰酶软化对胶原性质的影响。

To evaluate the reliability of circulating enzymatic method for determination of total bile acid in serum.

通过对总胆汁酸试剂盒的分析性能测定，评价TBA酶循环法测定的可靠性。

Cell survival was evaluated using optical bioluminescence on days 1, 5, 8, 14, and 28 postoperatively. At 4 weeks, fractional shortening and ejection fraction were determined using echocardiography and magnetic resonance imaging, respectively.

在手术后第1、5、8、14及28天用生物发光法测定细胞的存活率。4周后，分别用心脏超声和磁共振影像学测定缩短分数和射血分数。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。