查询词典 oxalic

CD was added into running buffer in above electrophoresis system, and the separation efficiency of polycarboxylic acids was improved further by the supramolecular interaction. Based on that, the method for separation and determination of several di- and tricarboxylic acids, including oxalic, malic, tartaric and citric acids, found in fruit juices was developed, which supplied a fast, convenient and sensitive method for the food analysis, the quality control of foods and various drinks.

果汁中多元有机酸的毛细管区带电泳/Cu电极安培检测在上述分析体系的电泳介质中添加β-CD，利用CPB与β-CD的协同超分子作用，进一步提高了多元有机酸的分离效率，成功实现了水果中四种常见多元有机酸草酸、柠檬酸、苹果酸、酒石酸的基线分离，建立了几种果汁中上述有机酸毛细管区带电泳/Cu电极安培检测定量测定方法，为食品分析、食品饮料质量控制以至辨别酒类商品真伪等提供了一种方便、快速、灵敏度高的分析方法。

Hydrogen peroxide(H_2O_2)was used as oxidant,oxalic acid as complexing agent and tungstic acid (H_2WO_4)as catalyst.

研究了以环戊烯为原料、草酸为有机络合剂、H2O2为氧化剂，在催化剂钨酸(H2WO4)的作用下一步合成戊二酸的绿色新过程，考察了氧化剂的含量、反应物配比、催化剂用量、反应温度、反应时间等对反应的影响。

Uronic acid, a component of dietary fibre, and oxalic acid, found in certain fruits and vegetables can also bind calcium.

糖醛酸的一个组成部分膳食纤维，以及草酸发现，在某些水果和蔬菜也可以结合钙。

Whewellite is the product by the action between calcite and oxalic acid secreted by plants affer ice tongues retreated.

水草酸钙则是冰退后沉淀的方解石与植物分泌的草酸反应的产物。

Oxalic acid ; glyoxylic acid ; cathodic electrolyzing ; electrode activizing

草酸；乙醛酸；阴极电解；电极活化；离子膜

The main intermediates were detected during decomposition,such as acetic acid,oxalic acid,malonic acid,phenol,3-hydroxyhypnone,naphthalene,benzene sulfonic acid,phthalic acid,β-naphthalene etc . by ultraviolet-visiblespectroscopy,ion chromatographand gas chromatograph coupled with mass spectrophotometertechniques.The possible degradation pathway of Acid Orange Ⅱ was also speculated,that was,hydroxyl radical reacted with the azo linkage-bearing carbon of naphthol-ring,and the C—N cleaved,the azo-dye decolored and mineralized.

运用紫外光谱、离子色谱、色谱-质谱联用等方法，测定出酸性橙Ⅱ的主要降解产物有乙酸、乙二酸、丙二酸、苯酚、3-羟基苯乙酮、萘、苯磺酸、邻苯二甲酸、β-萘酚等，并依此推测酸性橙Ⅱ的降解机理，即羟基自由基攻击酸性橙Ⅱ分子上与萘环相连的C—N键，导致C—N键的断裂，进而染料脱色矿化。

The oxalic acid degumming process, the production effect and its influence on the following procedure were described.

通过对多种脱胶方法的试用和比对，发现草酸脱胶法对米糠浸出毛油脱胶效果比较理想。

In this study,a HPLC system equipped with an Aminex HPX-87H column was applied to determine oxalic acid in bleaching filtrates.

本研究以一个基于阴离子交换柱的离子交换色谱法作为对照方法，利用一套配备了AminexHPX-87H液相色谱柱的高效液相色谱系统测定漂白废液中的草酸浓度。

Analysis and control of oxalic acid in bleaching filtrates has recently gained considerable attention in the pulp and paper industry due to problems with the formation of calcium oxalate scaling.

近年来草酸钙的形成在制浆造纸工业中造成诸多问题，因此如何分析及控制漂白废液中的草酸浓度就显得尤为重要。

Wool, silk besmirch can choose alcohol off color, then the float to remove traces of color of oxalic acid.

羊毛、丝绸上的污渍可选用酒精脱去浮色，然后用稀草酸去除色底痕迹。

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