The results show that benzo ( a) pyrene is of the highest total score in several kinds of persistent toxic substances, followed by chromium ( VI), cadmium, lead and benzene hexachloride ( BHC, a kind of organo-chlorine pesticides).

1、

METHODS The residues of 4 isomers of benzene hexachloride ( BHC), 4 isomers of dichloro-diphenyl trichloroethane ( DDT) and pentachloro nitrobenzene ( PCNB) were determined by gas chromatography.

方法采用气相色谱法对六六六（BHC）4种异构体、滴滴涕（DDT）4种异构体和五氯硝基苯（PCNB）进行测定。

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2、

Using concentration of benzene hexachloride ( BHC) and dichlorvos ( DDVP) by 3 ∶ 1, the control effect can reach 98.6%.

采用六六六加敌敌畏按3∶1混合剂进行化学防治，防治效果达98.6%。

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3、

Results The detectable rates were 100 percent whether 666 ( benzene hexachloride) or DDT ( dichloro diphenyl trichloroethane).

结果人发中666、DDT的检出率均为100%。

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4、

Benzene hexachloride is commonly called BHC.

六氯化苯通常称为BHC。

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5、

Degration effect of RE elements in benzene hexachloride ( 666) residue in the agricultural products. preliminary report

稀土元素对农产品中六六六残留量的降解效应研究初报

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6、

Effect of benzene hexachloride on LDH-X of sperm and testis in mice

工业品六氯环己烷对小鼠睾丸和精子LDH-X的影响

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7、

UV spectra indicated that benzene ring structure of organic chlorine was distributed completely after photocatalytic degradation.

通过紫外光谱图对4-氯-愈创木酚的降解进行跟踪，结果表明，氯化有机物中的苯环特征峰完全消失，降解较彻底。

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8、

Quantitative structure-activity relationships of organic chemicals with benzene ring

含苯环有机污染物定量结构与活性相关性研究

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9、

The experimental results show that the azo group and benzene ring have marked influence on biodegradability;

实验结果表明：实验染料结构中的偶氮基和苯环对染料的可生化性有显著的影响；

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10、

Study on destraction of benzene ring structure by phosphorus oxygen reaction

黄磷诱发氧化破坏苯环结构的反应途径

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11、

Synthesis of cyclopentadienyl-hexamethyl-benzene-iron tetrafluoroborate

环戊二烯六甲基苯铁四氟硼酸盐的合成

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12、

Benzene hydrocarbon products& Determination of distillation range

GB/T3146-1982苯类产品馏程测定法

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So a new approach was obtained to develop sensitive elements response to benzene hydrocarbon gases.

从而为苯类有机气体敏感元件研制提供了一条新途径。

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14、

Purification of waste gas containing low concentration of benzene hydrocarbon by adsorptive process

吸附法净化低浓度废气实验研究

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Investigation of Element and Modifying Properties of Sensitive Material Response to Benzene Hydrocarbon

响应苯类气体敏感材料改性与器件研究

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16、

On Treatment of Waste Gas Containing Low Concentration of Benzene Hydrocarbon with Active Carbon

活性炭吸附法处理低浓度苯类废气的研究

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17、

Measurement and analysis of benzene hydrocarbon in urban residential quarters air

城市居住区空气中苯系物的测定来源分析

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18、

Study on a New Method of Determining Benzene Hydrocarbon

苯系物测定方法的研究

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19、

Photocatalytic oxidation of sodium dodecyl benzene sulfonate using TiO_2 as catalyst

TiO2光催化氧化十二烷基苯磺酸钠

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Molecular Dynamics Simulation of Sodium Dodecyl Benzene Sulfonate Aggregation on Silica Surface

十二烷基苯磺酸钠在SiO2表面聚集的分子动力学模拟

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