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).

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。

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%。

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%。

Benzene hexachloride is commonly called BHC.

六氯化苯通常称为BHC。

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

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

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。

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

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；

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

Synthesis of cyclopentadienyl-hexamethyl-benzene-iron tetrafluoroborate

环戊二烯六甲基苯铁四氟硼酸盐的合成

Benzene hydrocarbon products& Determination of distillation range

GB/T3146-1982苯类产品馏程测定法

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。

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

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

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

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

Study on a New Method of Determining Benzene Hydrocarbon

苯系物测定方法的研究

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

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