光度计的

Backed on high performance microscope and photometer, it is the key point of realizing coal petrologic test technology progress by technical means of further eliminating interference measuring point.

以性能良好的显微镜和光度计为依托，通过技术手段进一步消除干扰测点，是实现煤岩自动测试技术进步的关键。

In particularly, we conducted a deep discussion on potassic testing conditions using the TAS-986 model atomic absorbing spectrophotometer, with a flaming (air - acetylene ) approach.

尤其是对TAS—986型原子吸收分光光度计用火焰法测钾的条件作了深入的探讨。

The result indicates that the best method for extracting β-carotene is to saponify the test specimen one hour with 4% NaOH methyl alcohol solution in 60-70'c and then to separate with 3:7 acetone-benzine component solvent as extraction solvent, MgO as the absorbent, the acetone-benzine as the eluent. Extracted solvent has been determined in the color dish condition (1cm) by ultraviolet spectrophotometer at 447 nm. The result shows that the β-carotene in carrotis 0.134 mgg^(-1), 0.0863mgg^(-1) in red pepper and 0.0426 mgg^(-1) in spinach.

结果表明，比较优先的β-胡萝卜素提取方法是：试样用4% NaOH甲醇溶液在60℃~70℃皂化1h，用3：7的丙酮－石油醚混合溶剂提取，以Mgo为吸附剂，丙酮－石油醚为洗脱剂分离，提取液用紫外分光光度计在波长447nm，1cm比色皿条件下测定，得出蔬菜中β-胡萝卜素含量：胡萝卜为0.134mgg^(-1)，红椒为0.0863mgg^(-1)，菠菜为0.426mgg^(-1)。

After spraying the fermentation supernatant of endophytic actinomycetes GKSHJA and PR1-8, the impact of the endophytic actinomycetes against Sphaerotheca fuliginea histomorphology were tested by the differential interference, and the enzyme activity of POD, SOD, PAL on cucumber leaf treated by spraying endophytic actinomycetes were tested by the spectrophotometer.

对喷施内生放线菌GKSHJA及PR1-8发酵上清液处理后采用微分干涉的方法观测生防菌对白粉菌的组织形态学影响，利用分光光度计测定喷施发酵液后黄瓜叶片内POD、SOD、PAL酶活变化。

Digestion conditions, working conditions of atomic fluorescence spectrometer and conditions of hydride generation reaction were studied. Methods for the reduction from Se to Se by using boiling water bath and UV were compared. The amount of sulfamic acid for the elimination of the interference of nitrogen oxides was also investigated.

探讨了消解条件、原子荧光光度计工作条件及氢化物发生反应条件，对比沸水浴加热和紫外光加热2种将Se还原为Se的方法，研究氨基磺酸消除氮氧化物干扰的最佳条件。

In order to determine the contents of Vitamin C,Nitrate,and Nitrite in varied Zingiber officinale and evaluate the quality of Zingiber officinale,ultraviolet spectrophotometer is used to measure the absorbency of Zingiber officinale at special wavelength.

为评价不同处理方法对生姜中V itC、硝酸盐和亚硝酸盐含量的影响，通过紫外吸收分光光度计在特定波长下的吸收值分别对鲜姜、煮姜和泡姜进行测定。

Through the acquisition of image information,quantitative analysis of color material can be done.

此方法是采用透过光强与物质浓度呈非线性的对数关系的原理，属于间接测量，且分光光度计价格昂贵。

An elution process is monitored at the position of a wavelength of 363nm on an ultraviolet spectrophotometer to collect a solution at a first wave crest and after the solution is cooled and dried for 22 hours to 28 hours, folacin coupled chitosan solid is obtained.

将反应后的产物冷却至室温，用凝胶柱进行分离，在紫外分光光度计上，于363nm波长处监测洗脱过程，收集第一个波峰的溶液，将其冷冻干燥22～28小时后，得到叶酸偶联壳聚糖固体。

The optimum conditions were as follows: 1 Fe3+/Fe2+ was 1.70-1.75;2 the precipitant,25% ammonia water was used 20%-30%,under 35℃,pH10-11 and with a stirrer speed of 3000 r/min for 1 h;3 in the first package process with gelatin and agar,the optimum amounts was 0.050-0.060g/150mL at the temperature of 55-60℃ and pH of 9-11;In the f...

最佳工艺条件为：(1)Fe3+/Fe2+之比在1.70~1.75；(2)沉淀剂25%NH3.H2O过量20%~30%，温度35℃，pH值11，反应时间为1h；(3)琼脂的最佳用量为0.050~0.060g/150mL；包覆的最佳温度为50~60℃，pH值为9~11；聚乙二醇作为第二次包裹剂时，最佳温度为55℃，反应时间是1h，pH值为4~5；并用透射电镜、分光光度计、古埃磁天平等进行了初步表征。

Except the opticator, the telescope other main part is installs in the host mirror focal-plane eight scientific instruments, respectively is: Wide field of view and planet photographic camera, dark weak heavenly body photographic camera, dark weak astrospectrograph, high resolution spectograph, high speed luxmeter and three precise guidance remote sensing.

除了光学部分，望远镜的另外一个主要部分就是装在主镜焦平面上的八台科学仪器，分别是：宽视场和行星照相机、暗弱天体照相机、暗弱天体摄谱仪、高分辨率摄谱仪、高速光度计和三台精密制导遥感器。

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。