分光光度测定

Mainfactors are as follows: standard solution、 regressive curve、 parallel experiment of sample、 diacetyl monxime's reagent colorimetic method、 spectrophotometer、 sampling , etc .

影响测定结果的分量主要有：标准溶液、回归曲线、样品平行试验、二乙酰一肟分光光度法、分光光度计、取样等。

The comparison analysis of nitrate nitrogen determination is conducted with the same standard solution and natural water samples by two methods of spectrophotometric method with phenol disulfonic acid and ultraviolet spectrophotometer.

采用同一标准液和天然水样用酚二磺酸光度法和紫外分光光度法测定硝酸盐氮，进行比对分析，同时调查云南省内用此两种方法密码样考核的情况。

The comparison analysis of nitrate nitrogen determination is conducted with the same standard solution and natural water samples by two methods of spectrophotometric method with phenol disulfonic acid and ultraviolet spectrophotometer.

测定水中硝酸盐氮含量有多种方法，主要包括酚二磺酸光度法、锅柱还原法、戴氏合金还原法、离子色谱法、紫外分光光度法和电极法等。

Methods After the sample of Fenneropenaeus chinensis, Litopenaeus vannamei, Liza haematocheila, Acanthogobius hasta, Mactra veneriformis, Aloidis laevis, Ostrea denselamellosa and Fenneropenaeus chinensis was digested with concentrated hydrochloric acid, the lead content in marine products was measured by fluorimetric method and the results were compared with dithizone spectrophotometry.

采用湿式消解法对中国对虾、南美白对虾、梭鱼、矛尾刺虾虎鱼、四角蛤蜊、光滑兰蛤、密鳞牡蛎、中国对虾样品进行处理，采用浓盐酸作溶剂，荧光分光光度法直接检测铅含量，并与双硫腙光度法的测定结果进行比较。

If the base was added again to above solution until pH≥13, the resinoid substance was separated from it.

以分光光度法，于740 nm波长下测定含0.98％正丁醇的0.5％PVA与铜盐组成的(pH=10)不同浓度(5～50 mg CuCl_2·2H_2O/100 ml)的水溶液吸光度，并对CuCl_2·2H_2O摩尔浓度作图，它遵守朗伯—比耳定律。

The total nitrogen was determined by ultraviolet spectrophotometer, and the absorbency needed to be emendated by A=A(subscript 220nm)-2A(subscript 275nm) The total phosphorus with sulfuric acid-ammonium stibium molybdate-ascorbic acid as the developer was determined by spectrophotometer at 700-720nm wave length.

用紫外分光光度法测定总氮，并采用校正吸光度A=A(下标 220nm)-2A(下标 275nm)对其进行定量；用钼－锑－抗作显色剂，在波长700~720nm下对总磷进行比色定量。

Methods Cancer tissues of 68 carcinoma ventriculi patients and side tissues of the control group were collected; Se、Zn、Cu、Fe、Cd were determined with atomic absorption spectrophotometry and fluorophotometry.

收集68例胃癌患者癌组织及癌旁组织，用原子吸收分光光度法和荧光光度法测定Se、Zn、Cu、Fe、Cd。

Based on Fenton reaction and the auto-oxidation of pyrogallol, the anti-radical activity of morinda officinalis how was studied by spectrophotometry. The morinda officinalis how has obvious scavenging effects on hydroxyl radical and superoxide anion radicalO2(superscript - with the efficiency related to concentration of morinda officinalis how.

基於Fenton反应和抑制邻苯三酚自氧化原理，分光光度法测定体系吸光度的变化研究巴戟天抗自由基活性，证明巴戟天对羟自由基及超氧阴离子自由基O2(上标-均有良好的清除作用，清除率与巴戟天的浓度有一定的量效关系。

A method for the determination of silver in impregnated activated carbon by air-C2H2 flame atomic absorption spectrometry was set up.

本研究建立了一种用空气-乙炔火焰原子吸收分光光度法测定浸渍活性炭中银含量的分析方法，对酸介质浓度、共存元素的干扰进行了探讨，在0～1.0mg/L范围内，银含量与吸光度呈线性关系，相关系数为0.9999。

Palladium chloride and lincomycin hydrochloride form a stable complex. And the detection wavelength was at 380 nm.

依据氯化钯与盐酸林可霉素形成稳定络合物，用紫外分光光度法于380nm处测定其吸光度，并计算含量。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了