乙二胺四乙酸二钠

乙二胺四乙酸二钠标准滴定溶液的不确定度

Uncertainty of Disodium EDTA Standard Titrated Solution

50℃、24h的恒温实验结果表明，单一稳定剂中，乙二胺四乙酸二钠对UP的热稳定效果最好，酒石酸的效果最差；

The results under 50 ℃ with the storage time of 24 h show that , among all the single stabilizers , the thermostability coefficient of the UP with disodium EDTA stabilizer is the largest and that of the tartaric acid is the smallest .

膜不通透性Zn2+螯合剂乙二胺四乙酸二钠钙（CaEDTA）能降低细胞内游离Zn2+含量，并抑制胞内MTⅢmRNA的表达。

The cell membrane impermeable Zn 2 + chelator could reduce the intracellular concentration of free Zn 2 + and the expression of MT ⅲ mRNA .

外加无机盐、糖类、多元醇或有机电解质均可以提高酶的储存稳定性和热稳定性，室温下乙二胺四乙酸二钠、草酸钠、乙酸钠及氯化钙对LOX活性均有较好的稳定作用。

Addition of some salts , sugar , polyol or organic electrolytes , especially EDTA-Na_2 can increase the storage stability and thermostability of LOX .

探讨了微波（MW）-乙二胺四乙酸二钠（EDTA）快速脱钙技术对鱼鳞脱钙的影响，及其脱钙过程中胶原的损失情况。

To investigate the effect of rapid decalcification techniques with microwave ( MW ) and ethylene diamine tetracetic acid ( EDTA ), and the loss of collagen on the process of decalcification in fish scale .

以乙二胺四乙酸二钠、柠檬酸、抗坏血酸为PPO抑制剂，采用L9（3~4）表进行正交实验，结果表明：0.003%EDTA+0.1%柠檬酸+0.1%抗坏血酸能最大限度地抑制建莲的多酚氧化褐变。

By L9 ( 34 ) researching on methods of Jian-lotus PPO 's activity inhibitation , the result shows that the combination of 0.003 % EDTA , 0.1 % citric acid and 0.1 % ascorbic acid could enormously inhibit Jian-lotus 's polyphenol oxidation .

乙二胺四乙酸二钠/碳糊修饰电极测定银离子

An Ethylenediaminetetraacetic Acid Modified Carbon Paste Electrode for the Determination of Silver Ion

乙二胺四乙酸二钠是一种优秀的络合剂。

Disodium ethylenediamine tetraacetate is a good sequesterant .

酒石酸钾钠&乙二胺四乙酸二钠作掩蔽剂丁二酮肟测镍的方法研究

On the Photometric Determination of Nickel with Dimethylglyoxime Using Potassium Sodium Tartrate and EDTA as Masking Agent

高效液相色谱法测定板栗罐头中乙二胺四乙酸二钠的含量

Determination of ethylene diamine tetraacetic acid disodium salt in canned chinese chestnut by high performance liquid chromatography

对乙二胺四乙酸二钠滴定法测定生活饮用水总硬度的测量不确定度进行评定。

The uncertainty of measurement for the determination of total hardness of drinking water by EDTA titration method was evaluated .

双指示物质动力学分析法研究Ⅰ.锰（Ⅱ）-乙二胺四乙酸二钠-铬（Ⅳ）催化体系

Studies on the New Kinetic Analysis by Two Indicating Substances ⅰ . Manganese (ⅱ) - Ethylenediaminetetraacetic Acid Disodium Salt-Potassium Dichromate System

在化学镀时本实验采用的是双络合剂三乙醇胺和乙二胺四乙酸二钠，实验证明使用这两种络合剂能取得较好的镀覆效果。

In electroless plating we adopted double complexing agent triethanolamine and ethylenediamine tetraacetic acid disodium . The experiments proved that using the two complexing agent can obtain a good plating effect .

研究了以Fe3+-乙二胺四乙酸二钠-Na2S2O3体系为浸取剂从废感光胶片中回收银的方法，考察了浸出银的最佳工艺条件。

A method using Fe ~ ( 3 + ) - EDTA-Na_2S_2O_3 system as leaching agent for recovering silver from waste photosensitive film was studied and the optimum process conditions were examined .