挥发酚
- 网络volatile phenol;volatile phenolic compounds
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而且随挥发酚浓度增加,与对照组相比鲫鱼肌肉中挥发性酯类物质在不断减少,而那些产生腥味的醛类在增多。
With the phenol concentration increasing , compared with the control group , the volatile esters in Carassius auratus muscle continued to decrease , and some kinds of aldehydes which produced off-odor rised .
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多年统计数据表明,地表水中的石油类、挥发酚、环境空气中总悬浮颗粒物、城市道路交通噪声等污染物超标频率较高,且超标倍数较大。
The long-term statistic date of environment monitoring demonstrates the high frequency occurrence and considerable extent of excess of oil and phenol content in river water , total suspended particulate in the air , and the traffic noise in cities of Jiangxi province .
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化学需氧量(COD)和生化需氧量(BOD)分别降低78.6%和91.2%,硫化物去除率为98.2%,挥发酚去除率为99.6%。
The chemical oxygen demand and the biochemical demand were reduced by 78.6 % and 91.2 % respectively .
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而挥发酚对鲫肝脏的GSH-PX活力和CAT活力的影响的此种关系不明显。
However , this change relation was not such obvious on GSH-PX activity and CAT activity in the liver of Carassius auratus .
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过二硫酸铵氧化4-AAP光度法测定环境水质中挥发酚
Spectrophotometric determination of volatile phenols in the environmental samples with oxidation of 4-AAP using ammonium persulfate
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4-AAP光度法测定污水中挥发酚的干扰规律研究及其应用
Study on the Interference Patterns in the 4-Amino Antipyrine Photometric Determination of Volatile Phenols in Wastewater
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测定挥发酚时提纯4-AAP的方法及应注意的问题
The Method of Purifying 4-AAP in Detecting Phenol and Its Attentive Problems
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本文介绍气相色谱法测定水中的挥发酚。采用乙酸酐衍化预处理,氢火焰检测器(FID)测定;
Method for determination of phenols in water was described Derivatization pretreatment and flame ionization detector ( FID ) were used in the method .
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4-AAP纯度对水中挥发酚类测定结果的影响
Influence of Purification of 4 - AAP on Measured Results of Volatile Phenols in Water
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结合现阶段我国的经济技术条件选择了适用于河流水质月报的评价项目即pH、溶解氧、高锰酸盐指数、五日生化需氧量、氨氮、石油类、挥发酚、汞和铅等9项。
According to the actual economic and technological conditions of China , the assessing indicators for river water quality monthly report are pH , dissolving oxygen , permanganate value , BOD_5 , NH_3-N , oils , volatile phenol , mercury and lead have been selected .
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通过对主要影响因素的分析和正交试验结果,得出影响COD及挥发酚去除率的因素主次顺序为DO(A)>HRT(A)>HRT(B)。
According to the orthogonal test results and analysis , the author concludes that the factors influencing the removal of COD and volatile phenol in the order of their importance are as . DO_ ( A ) > HRT_ ( A ) > HRT_ ( B ) .
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常温常压下投加二氧化氯1.2kg/m3,催化氧化4h,COD和挥发酚去除率分别为41%和78%;
By 4 h catalytic oxidation with ClO 2 1.2 kg / m 3 in normal pressure and temperature , the removal rates of COD and volatile phenol are 41 % and 78 % respectively .
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水体中挥发酚的存在引起各类脂肪酸含量的变化,尤其是使多不饱和脂肪酸相对含量的显著(P0.01或P0.05)下降,从而使单不饱和脂肪酸和饱和脂肪酸的相对含量有所提高。
But it could increase fat content , and made crude protein , salt-soluble protein and soluble protein decreased . The presence of phenol in water caused the changes of fatty acids . It would make the polyunsaturated fatty acids ' relative content decreased significantly ( P0.01 or P0.05 ) .
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研究结果表明,屋面初期径流的NH3-N、高锰酸盐指数及挥发酚等均劣于地表水Ⅴ类水质标准;
Results indicate that the main contaminants in the runoff are organic compounds and suspended solids . NH_3-N , permanganate index and volatile phenol in the initial runoff from roofs are all beneath the class ⅴ criteria of surface water .
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用4-氨基安替比林(4-AAP)分光光度法测定水中挥发酚类含量时,4-AAP药品纯度对试验结果的影响很大。
In the case of measuring the contents of volatile phenols in water by using 4 - AAP spectrophotometry , the purification of 4 - AAP has great influence on the test results .
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低浓度废水采取水解酸化-接触氧化-沉淀-活性炭吸附工艺是可行的,COD、BOD5、NH3-N及挥发酚的总去除率分别为95.6%、94.6%、93.7%和99%。
It is feasible to process the low-concentration organic wastewater by means of hydrolysis acidification-biological contact oxidation-precipitation-activated carbon absorption . The total removal rates of COD , BOD5 , NH3-N and the volatile phenol are 95.6 % , 94.6 % , 93.7 % , and 99 % respectively .
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高聚物萃取光度法测定钯萃取光度法测定高浓度挥发酚初步探讨
Determination of Palladium by Solvent Extraction - Spectrophotometry with High Polymer
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太原市地下水源挥发酚污染分析
Analysis on Underground Water Source Polluted by Volatile Phenol in Taiyuan
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改进后的差示光度法分析低浓度挥发酚
Analysis of Low Concentration Volatility Phenol with Improved Differential Photometric Method
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测定饮用水中挥发酚空白值偏高的分析
Analysis of Relative High Volatile Phenol Blank Value in Drinking Water
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水中挥发酚的测量不确定度评定
To Evaluate the Uncertainty of Detection of Volatile Phenol in Water
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离子液体作为萃取剂测量挥发酚的研究
Ionic Liquid as Extraction Agent for Detection of Volatile Phenols in Wastewater
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水样品中挥发酚的测量不确定度的评定方法
Study on Measurement Uncertainty Evaluation Method of Volatile Phenol in Water Sample
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以过硫酸钾为氧化剂测定水中挥发酚
To Determine Volatile Phenol in Water by Taking Potassium Persulfate as Oxidant
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挥发酚在废水中的特性和分布规律研究
Research on the Characteristic and Distribution Rules of Volatile phenols in Wastewater
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水中挥发酚和油类测定的几点体会
Some experiences in determining volatile phenol and oil in water
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土壤中挥发酚的测定及质量控制
Determination and quality control of the volatile phenol in soil
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分光光度法测定水中挥发酚的一些问题及处理方法研究
Study on Measurement And Pretreatment of Volatile Phenol in Water with Spectrophotometer
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4-氨基安替比林萃取光度法测定水中挥发酚
Determination of Volatilizable Phenol in Water by Using 4-Amino-antipyrine Photometer through Extraction
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荧光分光光度法测定天然水中的挥发酚
Determination of Volatile Phenols in Natural Waters by Fluorescence Method