hcho

Investigation of trends and risk with indoor air pollution by VOCs and HCHO

挥发性有机化学物质和甲醛的室内空气污染动态调查与危险性研究

We consider all the possible reaction channels in the reaction of HCHO with OH for the first time .

本文在前人工作的基础之上对甲醛和羟基的反应机理做了进一步的理论研究。

Formaldehyde ( HCHO ) is one of the main indoor air pollutants .

甲醛（HCHO）是室内空气的主要化学污染物之一。

We also simulated the daily changes of PAN , OH and HCHO .

文章还模拟了PAN，OH自由基和HCHO这三种重要物种的日变化规律。

A Study on Indoor Formaldehyde ( HCHO ) Pollution and Resources in Rural Area in North China

我国北方农村住宅室内甲醛污染现状及其来源的研究

Investigation of Urea-Formaldehyde Resins Having Low Free HCHO Content

低含醛量脲醛树脂粘合剂的研究

The Treatment of HCHO Waste Water With Technology Oxydation Adjustment of pH Flocculation Adsorption

用氧化-调pH值-絮凝-吸附工艺处理含甲醛废水

Study on the effect of NTP electrode configuration on the photocatalytic removal of HCHO

NTP电极结构对光催化去除室内HCHO的影响研究

Research on photo purification of HCHO by fabric treated with nano-titanium dioxide

经纳米二氧化钛整理织物的光催化性能研究

On the same electrode , the currents of oxidation of HCHO in difference weak basic solutions are different .

此外，在同一电极上，甲醛在不同种类的电解质溶液中产生不同的氧化电流。

Interestingly , the higher the calcination temperature was , the larger the sensor response to HCHO gas .

有趣地是，焙烧温度越高，传感器对甲醛气体的灵敏度也越高。

Formaldehyde ( HCHO ) is a very important intermediate species and should not be neglected .

甲醛是非常重要的中间产物，是不应当被忽略的。

Their combination with tanning agents Cr , Al , HCHO and vegetable tannin extract was also studied .

同时研究了它们与铬、铝、甲醛和栲胶等鞣剂的结合稳定性及其产生的助鞣作用。

Reaction of the HCHO and HO_2 , OH , H radicals ;

HCHO和HO2、OH、H自由基的反应；

In Situ Raman Spectroscopic Study on the Oxidation of HCHO on a Roughened Platinum Electrode

粗糙铂电极上甲醛电氧化行为及其现场表面拉曼光谱研究

Formaldehyde ( HCHO ), one of the simplest carbonyl compounds , is colorless volatile gas .

甲醛，最简单的羰基化合物，无色挥发性气体。

Objective : To study the time-effect relationship of mice embryonic toxicity and teratogenicity induced by HCHO in vitro .

目的：探讨甲醛对植入后小鼠胚胎发育毒性及时间-效应关系。

The method was more quick and simple , it can be used to the analysis of formaldehyde in reaction of phenolic and HCHO .

本方法快速简便，是酚醛树脂工艺中判断酚醛缩合反应程度的重要手段。

Indoor air levels of SO_2 、 HCHO and TVOCs in dwellings in Nanjing

南京市居室内SO2、HCHO和TVOCs污染的研究

Objective The immnue system effect was observed in mice following inhalation exposure to formaldhyde ( HCHO ) .

目的通过吸入染毒来观察甲醛对小鼠免疫系统的影响。

Pure indium oxide gas sensor has higher sensitivity to alcohol , gasoline and HCHO , but it has poor gas selectivity .

氧化铟气敏元件对汽油、酒精、甲醛等有机蒸气具有较高的检测灵敏度，但选择性不好。

Studies on the kinetic degradation of SBM protected with HCHO and its effect on in vitro fermentation of the diet

甲醛保护豆饼的动态降解及其对日粮体外发酵影响的研究

MethodsHepatocyte apoptosis of mice was induced by Hcho .

方法采用甲醛诱导小鼠离体肝细胞凋亡。

The result shows that these air cleaners can absorb toxic gas such as SO2 , NOx , HCHO to certain extent .

结果表明，该四种空气净化器对SO2、NOx、HCHO等有害气体均有一定的吸附效果。

Recently , formaldehyde ( HCHO ) has become one of the main indoor air pollutants because of a variety of insulation materials applied in buildings .

由于各种绝热建筑材料在建筑物上的应用，使得甲醛成为室内空气的主要污染物之一。

The test results were satisfactory when this method was used in analyses of trace HCHO in etherified 2D resin , cross-linking agents and textiles .

应用此法分析2D醚化树脂、交联剂及织物中微量甲醛，结果满意。

ESR studies of the reactions of co , ch_3oh , hcho , and CO + h_2 on fresh surface of MgO

ESR研究CO，CH3OH，HCHO和CO+H2等体系在MgO新鲜表面上的反应

The reaction conditions of HCHO / NAD + / formaldehyde dehydrogenase catalytic system were studied . The spectrophotometry method for determination of HCHO was developed .

研究了HCHO/NAD+/FDH体系的最佳条件，建立了简便测定甲醛的吸光光度法。

It was studied on the adsorptive properties for such toxic gases as SO2 , HCHO , H2S and NH3 in this paper .

本文研究了Pr（III）接受带孤对电子的有害气体SO2、HCHO、H2S和NH3作为配体的能力及其选择性。

The analysis of experiment effects have showed that the emissions of HCHO slightly increase as the rotate speed increased , and decrease to some different extent as the load increases .

结果表明，甲醛的排放量随转速上升而略有上升，随负荷增加而不同程度的减少；