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滴定碘
相关语句
  titrating iodine
     Discuss on Using Titrating Iodine Method to Detect Alcohol in Fermented Grains of Alcoholic Liquor with Solid-State Fermentation
     滴定碘法测定白酒固态发酵酒醅酒分的探讨
短句来源
  “滴定碘”译为未确定词的双语例句
     DETERMINATION OF THE PURITY OF GLYCEROL WITH PERIODIC ACID AS OXIDANT BY IODOMETERY
     高碘酸氧化-滴定碘法测定甘油含量的研究
短句来源
     Comparison of iodimetry and iodometry in the content determination of D-isoascorbyl laurate
     滴定碘法和碘滴定法测定月桂酸异VC酯的比较
短句来源
     H2SO4.The results show that the iodimetry has higher precision and more sensitive color changs at the end point,and it can be used in the determination of low content samples.
     试验表明两种方法无显著性差异,但滴定碘法终点变色更敏锐、易于判断,方法的精密度更高,能用于较低含量试样的测定。
短句来源
  相似匹配句对
     Coulometric Titration of Microgram Amounts of Palladium with Electrogeneration of Iodide Ion
     用电生离子库仑滴定微量钯
短句来源
     CATALYTIC TITRATION
     催化滴定
短句来源
     DETERMINATION OF THE PURITY OF GLYCEROL WITH PERIODIC ACID AS OXIDANT BY IODOMETERY
     高酸氧化-滴定法测定甘油含量的研究
短句来源
     The spectrophotometric determination of microamount of atomic iodine
     (I)的分光光度法测定
短句来源
     Iodide Goiter
     高甲状腺肿
短句来源
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A device, which is suitable for the catalytic photometric titration, is descri-bed. It is a single beam and one-wave length instrument which consists of fourunits, namely, the spectrotitration unit, calculation unit, constant rate burette andpotentiometric recorder. The spectrotitration unit is modified from 721 type spe-ctrophotometer. There the concentration of indicator substance in the titrationsystem is detected sensitively. The signal is fed to the compensated deductor tomake the determination more sensitive....

A device, which is suitable for the catalytic photometric titration, is descri-bed. It is a single beam and one-wave length instrument which consists of fourunits, namely, the spectrotitration unit, calculation unit, constant rate burette andpotentiometric recorder. The spectrotitration unit is modified from 721 type spe-ctrophotometer. There the concentration of indicator substance in the titrationsystem is detected sensitively. The signal is fed to the compensated deductor tomake the determination more sensitive. A XWC-100 type automatic recorder isused to record the titration curve. The constant rate burette is a mechanicallydriven syringe burette modified from an electric microflow wriggle pump. Theprincipal technical specifications are as follows: Titration rate: 0.2-5 ml. min~(-1); Drawing rate: 5 ml. min~(-1); Absorption detection sensitivity:≥0.0005 A(in the range 0-0.4A); Photometric spectra range: 380-800 nm. The device is examined by catalytic precipitation titration(titration of the si-lver ion with standard potassium iodide) and catalytic complex formation titration(titration of calcium ion with standard EDTA solution). It is confirmed thatthe device is suitable to use for the catalytic photometric titration.

本文报导一种用于催化光度滴定的单光束、单波长的半自动分光光度滴定仪,它由四个部分组成,即分光光度滴定计,运算器,滴定器与记录仪。分光光度滴定计由721型分光光度计改装而成,滴定体系中的指示物质的浓度在此灵敏地被检出,并经过调零减法器使它具有全差示功能,使测定的灵敏度有较大提高,输出信号直接被XWC-100型自动平衡记录器记录。滴定器是由蠕动型电子微量泵改装,在步进电机带动下匀速推进医用注射器,使其匀速排出滴定剂。经用催化沉淀滴定(碘离子滴定银离子)与催化结合滴定(EDTA滴定钙离子)对该仪器进行检验,实验证明这台仪器用于催化滴定是适合的。

A method of auto-potentiometric titration was developed to determinate more than teo kinds of amino acids widely used in clinic. The method was compared with the nonagueous, iodimetric and alkaline titration. The relative standard deviation 0.3% sample consuming is 40-80 mg. This method is simple、acurate、sensitive and easy to judge the end-point. It is worthy to recommend to be widely applied.

用自动电位滴定仪能对大多数氨基酸进行测定,经与常用的非水滴定、碘量法和碱滴定法比较,具有简便易行、准确、灵敏度高、相对误差小、用量少和快速等优点.

Alcoholcontentinfermentedgrainsof alcoholicliquorwithsolid-statefermentationwasdetectedby titrating iodinemethod,accordingto theprincipleof identicalnormalityreaction.Sincetheoperationrequirementis notprecise,themethodis easyto be masteredandcanpromptlyandaccuratelydirectproduction.

依等当量反应原理,利用滴定碘法测定白酒固态发酵酒醅酒分。此操作条件不十分严格,较易掌握,能够及时准确的指导生产。

 
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