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   2-二氯乙烷 在 安全科学与灾害防治 分类中 的翻译结果: 查询用时:1.425秒
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乙烷
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  “2-二氯乙烷”译为未确定词的双语例句
    Determination of 1,2-dichloroethane in workplace air with thermedesorption gas chromatography
    工作场所空气中1,2-二氯乙烷的热解吸气相色谱测定方法
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    Determination of Time Weighted Average Concentration for 1,2-Dichloroethane,Trichloromethane and Carbon Tetrachloride in the Air of Workplaces
    工作场所空气中1,2-二氯乙烷、三氯甲烷、四氯化碳的时间加权平均浓度测定方法研究
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    A survey on a case of acute 1,2-dichloroethane poisoning
    1起急性1,2-二氯乙烷中毒事故调查
短句来源
    Capillary Column Gas Chromatography in Determining Dichloroethane in the Air of Workplaces
    工作场所空气中1,2-二氯乙烷的毛细管柱气相色谱测定法
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    Results Linear limits of the methods:20 to (500 μg/ml) for 1,2-dichloroethane,90 to 800 μg/ml for trichloromethane,and 90~(500 μg/ml)for carbon tetrachloride.
    结果方法线性范围:1,2-二氯乙烷为20~500μg/ml,三氯甲烷为90~800μg/ml,四氯化碳为90~500μg/ml。
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To establish Thermal desorption gas chromatographic method for trichloromethane in workplace air. This method is based on "Standardization of Methods for Determination of Toxic Substances in Workplace Air". Breathrough Capacities:>10 7 mg/100 mg absorbent charcoal. Absorption efficiencies:99 89%~100% (trichloromethane concentration:64 5~174 7 mg/m 3). Storage Stability:at least 8 days. Precision (RSD):1 3%~5 1%. Desorption efficiencies:89 3%~93 3%. Detection limit:0 17 mg/m 3. Other volatile organic...

To establish Thermal desorption gas chromatographic method for trichloromethane in workplace air. This method is based on "Standardization of Methods for Determination of Toxic Substances in Workplace Air". Breathrough Capacities:>10 7 mg/100 mg absorbent charcoal. Absorption efficiencies:99 89%~100% (trichloromethane concentration:64 5~174 7 mg/m 3). Storage Stability:at least 8 days. Precision (RSD):1 3%~5 1%. Desorption efficiencies:89 3%~93 3%. Detection limit:0 17 mg/m 3. Other volatile organic solvents,e.g.,benzene,n heptane,n hexane,dichloroethane are not interferential substances. [Conclusion] This method meets the requirements of "Standardization of Methods for Determination of Toxic Substances in Workplace Air". It is feasible for determination of trichloromethane in workplace air.

[目的 ]建立工作场所空气中三氯甲烷热解吸气相色谱测定方法。 [方法 ]按照《车间空气中有毒物质监测研究规范》[2 ] 的要求进行实验室实验及现场实验。 [结果 ] 10 0mg活性炭对三氯甲烷的穿透容量大于 10 7mg ,当三氯甲烷的浓度为 64 5~ 174 7mg/m3 时 ,采样效率均达 99 89%~ 10 0 % ;样品在碳管中至少可保存 8d ,方法的重现性好 ,不同浓度的相对标准偏差为 1 3 %~ 5 1% ;平均解吸效率为 89 3 %~ 93 3 % ;方法的最低检测浓度为 0 17mg/m3 ;空气中与三氯甲烷共存苯、甲苯、正己烷、二氯乙烷等在本方法条件下不干扰测定。 [结论 ]此方法各项指标均达到《车间空气中有毒物质监测研究规范》[2 ] 的要求 ,适用于工作场所空气中三氯甲烷的现场监测

[Objective] To establish thermal desorption gas chromatographic method to determine dichloromethane in workplaces. [Methods] Experiments were carried out on the basis of "Standardization of Toxicant Substances Determination Methods" . [Results] Breakthrough capacity on dichloromethane > 10.9 mg/100 mg absorbent charcoal. The absorption efficiencies were 99.41 - 100% when the dichloromethane concentration were 72.9 - 168.7 mg/m3. Relative deviation rate was 1.3%-2.1% . Desorption efficiency was 89.7% -91.9% ....

[Objective] To establish thermal desorption gas chromatographic method to determine dichloromethane in workplaces. [Methods] Experiments were carried out on the basis of "Standardization of Toxicant Substances Determination Methods" . [Results] Breakthrough capacity on dichloromethane > 10.9 mg/100 mg absorbent charcoal. The absorption efficiencies were 99.41 - 100% when the dichloromethane concentration were 72.9 - 168.7 mg/m3. Relative deviation rate was 1.3%-2.1% . Desorption efficiency was 89.7% -91.9% . Detection limit was 0.032 mg/m3. [Conclusion] This method meets the requirements in "Standardization of Toxicant Substances Determination Methods" , and is feasible for the determination of dichloromethane in workplaces.

目的 建立工作场所空气中二氯甲烷热解吸气相色谱测定方法。方法 按照《车间空气监测检验方法研究规范》的要求进行实验室实验及现场实验。结果 100 mg活性炭对二氯甲烷的穿透容量大于10.9 mg,当二氯甲烷的浓度为72.7~168.7 mg/m~3时,采样效率均达99.41%~100%;样品在碳管中至少可保存8 d,方法的重现性好,不同浓度的相对标准偏差为1.3%~2.1%;平均解吸效率为89.7%~91.9%;方法的最低检测浓度为0.032 mg/m~3;空气中与二氯甲烷共存的苯、甲苯、正己烷、二氯乙烷等在本方法条件下不干扰测定。结论 此方法各项指标均达到《车间空气监测检验方法研究规范》的要求,适用于工作场所空气中二氯甲烷的现场监测。

Objective To develop a new method for determination of air 1,2-dichloropropane in workplace.〔Methods〕 The method of direct-injection gas chromatography was developed based on "Standardization of Methods for Determination of Toxic Substance in Workplace Air".〔Results〕 This method exhibited a linear relation within 0-156mg/m3. The samples could be stored in the syringe for 5h. Precision (RSD) was 1.7%-3.6% and detection limit 5.8×10 -4μg/ml. Other relative organic solvents such as dichloromethane, trichloroethylene,...

Objective To develop a new method for determination of air 1,2-dichloropropane in workplace.〔Methods〕 The method of direct-injection gas chromatography was developed based on "Standardization of Methods for Determination of Toxic Substance in Workplace Air".〔Results〕 This method exhibited a linear relation within 0-156mg/m3. The samples could be stored in the syringe for 5h. Precision (RSD) was 1.7%-3.6% and detection limit 5.8×10 -4μg/ml. Other relative organic solvents such as dichloromethane, trichloroethylene, trichloromethane,tetrachloroethylene and 1,2-dichloroethane etc. were not interfering factors.〔Conclusions〕 This method is conformed with the requirements of"Standardization of Methods for Determination of Toxic Substance in Workplace".It is feasible for determination of air 1,2-dichloropropane in workplace.

〔目的〕建立工作场所空气中 1,2 -二氯丙烷的直接进样气相色谱测定方法。〔方法〕按照《车间空气监测检验方法研究规范》[2 ] 的要求进行实验室实验及现场实验。〔结果〕本方法在 0 -15 6mg m3范围呈线性关系 ;样品在注射器中可保存 5h ;方法的重现性好 ,不同浓度的相对标准偏差为 1.7% -3 .6% ;方法的最低检出限为 5 .8× 10 - 4μg ml;空气中与 1,2 -二氯丙烷共存二氯甲烷、三氯乙烯、三氯甲烷、四氯乙烯、1,2 -二氯乙烷等在本方法条件下不干扰测定。〔结论〕此方法各项指标均达到《车间空气监测检验方法研究规范》[2 ] 的要求 ,适用于工作场所空气中 1,2 -二氯丙烷的现场监测。

 
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