氧化测定法

Chromic trioxide and chromium hemitrioxide are determined with iodometry, the coefficient of variation of chromic trioxide is 0.056%, and the recovery of marked compound is 99.82-99.83%; the coefficient of variation of chromium hemitrioxide is 1.45%,and the recovery of marked compound is 98.55-99.26%; iron is determined by complexometric titration, the coefficient of variation of iron is 1.73%, and the recovery of marked compound is 99.12-99.23%;sulfate is determined by complexometric titration, the coefficient of variation of sulphate is 0.16%, and the recovery of marked compound is

Analysis Of The Chromium Electroplating Wastewater By Oxidation-reduction And Complexometric Titration-化学工程与工艺-本文采用氧化还原滴定法与络合滴定法对镀六价铬的废水中铬酸酐，三氧化二铬，铁和硫酸根的含量进行了测定：铬酸酐和三氧化二铬用碘量法测定，铬酸酐的变异系数为0.056%，加标回收率为99.82-99.83%，三氧化二铬的变异系数为1.45%，加标回收率为98.55-99.26%；铁用络合滴定法测定，其变异系数为1.73%，加标回收率为99.12-99.23%；硫酸根用络合返滴定法测定，其变异系数为0.16%，加标回收率为

Methods The activity of SOD in blood was measured at 1,3,10 days after injury,using the pyrogallol assay in 42 cases. Results SOD activity in brain injury patients is significantly lower than in normal controls.

方法采用邻苯三酚自氧化抑制法测定了42例颅脑损伤患者伤后1、3、10天血液超氧化物歧化酶含量。

The in vitro releasing property of the preparation was examined by the method of in vitro delivery. The in vivo releasing property of the preparation was evaluated by the shadowgraph technique of barium sulfate. Results The preparation method of the PYTCSD was obtained.

以苦参碱和氧化苦参碱体外释放度为指标，对制剂的包衣处方进行筛选；采用体外释放度测定法考察该制剂的体外释放性能；采用硫酸钡造影技术对该制剂在人体内的释放性能进行评价。

Thioridazine hydrochloride is determinated by flow-injection system in which thioridazine hydrochloride is on-line oxidized into a strongly fluorescent compound firstly with a lead dioxide solid-phase reactor and the fluorescence intensity is measured with a fluorescence detector λex

三流动注射氧化荧光法结合在线透析采样研究盐酸硫利达嗪与牛血清白蛋白结合作用根据上述所建立的盐酸硫利达嗪含量测定方法，结合在线透析采样技术将蛋

METHODS Using the method of xanthine oxidase, we measured the activity of Mn-SOD in 50 speciments of human brain tumors and 10 normal brain control.

采用黄嘌呤氧化酶法测定50例脑肿瘤患者血清Mn-SOD活性，并做相关性分析。

Potassium, natrium determines it is good that use ion chooses electrode indirect method it is better also with indirect method to determine at calcium of direct way;, it is next occasionally phosphor of; of law of azotic arsenic Ⅲ determines use phosphor molybdic acid is ultraviolet law outcome is better it is better with result of law of personal candy kinase that; blood sugar determines; urea determines use Niao enzymatic ultraviolet anhydride of better; flesh uses rate law result enzymatic law outcome is better; albumin determines, it is vanadium acid next alkalescent phosphoric acid of oxidation law; is enzymatic determine outcome of fluid of use AMP amortize is better; amylase determines law of thing of enzymatic standard background and iodic colorimetric law coefficient of variation all bigger, former a bit small, latter of percent of pass is tallish, each lab can try to choose according to his condition.

结论钾、钠测定使用离子选择电极间接法好于直接法；钙测定用间接法也较好，其次是偶氮砷Ⅲ法；磷测定使用磷钼酸紫外法结果较好；血糖测定用己糖激酶法结果较好；尿素测定用脲酶紫外速率法结果较好；肌酐用酶法结果较好；白蛋白测定用溴甲酚绿法较好；胆红素测定用酶法结果好，其次是钒酸氧化法；碱性磷酸酶测定使用AMP缓冲液结果较好；淀粉酶测定酶法底物法和碘比色法变异系数均较大，前者稍小，合格率后者稍高，各实验室可根据自己的条件加以选用。

A novel method for determination of benzoyl peroxide with spectrophotometry was developed. Inclusion ratio of β cyclodextrin to dibenzoy peroxide and benzoic acid is obtained with spectrophotometry.The mechanism of the inclusion was studied,too. The results showed that β-CD react with dibenzoyl peroxide to form a 1:1 or 2:1 host-guest complex, with the apparent formation constants of 5.0× 10~2and 2.5× 10~4 , respectively.β-CD reacts with benzoic acid to form a 1:1 host-guest complex with the apparent formation constant of 6.9 × 10~2 after the dibenzoyl peroxide was reduced by hydroxyl ammonium chloride.

建立了用β环糊精测定过氧化苯甲酰的分光光度法，并测定了β环糊精与过氧化苯甲酰和苯甲酸的包结比，随着β-CD浓度的增大，可与BPO分别形成1：1或2：1的包容络合物，包结常数分别为5.0×10~2和2.5×10~4，与苯甲酸形成1：1的包容络合物，包结常数为6.9×10~2；由于包结物的吸光度值比过氧化苯甲酰的吸光度值大大增加，建立了一种当β-CD存在下，在水溶液中测定过氧化苯甲酰的方法。

Analysis on main points for determination of chlorine dioxide by iodometric method ;2. The experiment results show: To measure sulfide in wastewater by iodometric method may have errors because the interferent can not be removed.

用碘量法测定废水中的硫化物，可能因无法消除干扰而使测定结果存在较大误差；对于同一废水样品，当碘量法和亚甲基蓝分光光度法的测定结果存在显著性差异时，可用Pb2半定量法进行判定；对于某些化纤企业的废水，用氢氧化钾-乙醇溶液洗涤沉淀，可消除碘量法测定的干扰。

To discuss the mechanism of hypoglycemic function of Saururus Chinensis Baill ,using microwave technique to extract polysaccharide and determining its content by glucose oxidase method,establishing alloxan diabetes rabbit models to observe the influence of Saururus Chinensis Baill polysaccharide on blood sugar,superoxide dismutase and MDA in vivo.

为了探讨三白草降血糖的作用机理，采用微波技术提取多糖，以葡萄糖氧化酶法进行含量测定，建立四氧嘧啶型糖尿病兔动物模型，观察三白草多糖对其体内的血糖、超氧化物歧化酶和丙二醛的影响。

Methods With the model of aging mice induced by D-gal, the learning memory ability of mice was measured by using Y-maze, the contents of SOD and MDA in the cerebrums were determined by xanthine oxidation or TBA colorimetry ,the variations of above indices of mice after treatment with NGD were observed.

建立 D-半乳糖致小鼠衰老模型，以 Y型电迷宫检测其学习记忆能力，分别采用黄嘌呤氧化酶法、TBA比色法测定大脑 SOD活性和 MDA含量，观察小鼠服用神经生长液后上述指标的变化。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。