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气相色谱法与液相色谱法测定地下水样品中10种有机污染物的研究 被引量:2
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作者 钱晓霞 陆晓怡 《山东工业技术》 2015年第6期102-102,共1页
近年来,国家地质局开启了关于地下水质量的检测与整治工作,其中地下水中的有机污染物成为备受瞩目的一个话题,在地下水质量检测中,六氯苯、苯并芘、BHC的四种异构体和DDT的四种异构体是主要的检测对象。有机污染物采用的检测办法一般是... 近年来,国家地质局开启了关于地下水质量的检测与整治工作,其中地下水中的有机污染物成为备受瞩目的一个话题,在地下水质量检测中,六氯苯、苯并芘、BHC的四种异构体和DDT的四种异构体是主要的检测对象。有机污染物采用的检测办法一般是气相色谱法和液相色谱法,气相色谱法主要适用于热稳定较强、比较容易气化的有机物的检验,而液相色谱法主要适用于热稳定性较差、不容易气化的有机污染物,笔者以国家地质局关于地下有机物污染物的分析要求为出发点,利用气相色谱法和液相色谱法完成对地下水样品中10种有机污染物的检测工作。 展开更多
关键词 气相色谱法 液相色谱法 地下样品 有机污染物
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色谱法测定地下水样品中有机污染物的应用
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作者 付玉琴 《资源节约与环保》 2020年第4期89-89,共1页
随着近年来我国地质局逐渐展开有关地下水质量的检测整治工作,使得社会各界愈来愈关注地下水样品的有机污染物。本文将针对地下水样品测定有机污染物工作中,气相色谱法及液相色谱法的运用情况展开分析,指出这两种测定方法应用于地下水... 随着近年来我国地质局逐渐展开有关地下水质量的检测整治工作,使得社会各界愈来愈关注地下水样品的有机污染物。本文将针对地下水样品测定有机污染物工作中,气相色谱法及液相色谱法的运用情况展开分析,指出这两种测定方法应用于地下水样品有机污染物检测的效果较好。 展开更多
关键词 气相色谱法 液相色谱法 地下样品 有机污染物
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青藏高原地面露头样品风化校正研究 被引量:39
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作者 张君峰 王东良 +1 位作者 秦建中 刘宝泉 《石油实验地质》 CAS CSCD 2001年第3期297-300,共4页
在大量地面与井下、地表下样品对比实验的基础上 ,作者指出地表风化作用主要对烃源岩有机质丰度产生严重影响 ,不同岩性、不同参数样品的风化程度存在着明显差别 ,并提出了青藏高原地面样品的有机碳风化校正系数 ,同时指出可溶有机质如... 在大量地面与井下、地表下样品对比实验的基础上 ,作者指出地表风化作用主要对烃源岩有机质丰度产生严重影响 ,不同岩性、不同参数样品的风化程度存在着明显差别 ,并提出了青藏高原地面样品的有机碳风化校正系数 ,同时指出可溶有机质如沥青“A”、总烃、热解游离烃S1 和裂解烃S2 以及热解IH影响很大 ,无法进行风化校正 ,还探讨了地表风化作用对有机质丰度影响的主要控制因素。 展开更多
关键词 有机碳 有机质丰度 地面样品 井下样品 地下样品 风化校正 青藏高原 石油地质
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气相色谱-质谱联用法测定地下水中邻苯二甲酸酯方法探究
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作者 张兰 王莲阁 +1 位作者 范文耀 申硕果 《河南化工》 CAS 2022年第8期49-52,共4页
对测定水中邻苯二甲酸酯类化合物(PAEs)的样品前处理方法进行试验,通过选取萃取溶剂、溶剂用量、溶剂配比、改变加入内标节点等试验,建立了测定水中5种PAEs含量的气相色谱-质谱联用法(GC-MS)检测方法。在试验选定条件下,标准曲线呈现良... 对测定水中邻苯二甲酸酯类化合物(PAEs)的样品前处理方法进行试验,通过选取萃取溶剂、溶剂用量、溶剂配比、改变加入内标节点等试验,建立了测定水中5种PAEs含量的气相色谱-质谱联用法(GC-MS)检测方法。在试验选定条件下,标准曲线呈现良好的线性关系。样品加标回收率为88%~103%,相对标准偏差1%~8%,方法检出限为0.04~0.10μg/L。该方法具有操作简便、干扰引入少、准确度高、重复性好等优点,适合大批量地下水样中PAEs含量的测定。 展开更多
关键词 邻苯二甲酸酯(PAEs) 地下样品 气相色谱-质谱联用法(GC-MS)
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Investigation of Subsurface Contamination due to Chromium from Tannery Effluent in Kasur District of Pakistan
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作者 Haroon Rashid Jiro Takemura Abida Mumtaz Farooqi 《Journal of Environmental Science and Engineering(A)》 2012年第8期1007-1024,共18页
The present study is conducted in the scenario of the tannery waste hazards in Kasur district of Pakistan where the tannery industry is considered as major cause of groundwater quality deterioration, Area focused in t... The present study is conducted in the scenario of the tannery waste hazards in Kasur district of Pakistan where the tannery industry is considered as major cause of groundwater quality deterioration, Area focused in this research constitutes the surroundings of the effluent carrying drains near tannery units. This study includes soil explorations, groundwater monitoring and wastewater analysis in the research area so as to find out the contamination extent of chromium in subsurface. Initial groundwater monitoring exhibited chromium concentrations as high as 90 mg/L in the tannery area. Even groundwater sampling from monitoring wells installed in the adjacent areas of effluent carrying drains, showed concentrations up to 10.4 mg/L. Wastewater analysis of all the drains in the research area has evidenced potential risk of contaminant seepage into soil and groundwater as level of chromium in wastewater samples has reported to be immensely high and varies from 68 mg/L to 2,152 mg/L. However the 30 soil samples collected from two soil bores did not show any significant results as the maximum values obtained for hexavalent chromium for leaching and retained in soil are 0.02 mg/L and 8.1 mg/kg, respectively. These low concentrations of soil samples suggest that the soil contamination may not be a main environmental issue in the areas adjacent to the effluent carrying drains, The research concludes as possibility of direct interference of the tannery wastewater with groundwater through damaged structures and sewers. 展开更多
关键词 Groundwater and soil contamination soil boring CHROMIUM tannery effluent TCLP aqua regia acid digestion.
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Soil Explorations and Groundwater Monitoring to Evaluate Subsurface Contamination Due to Chromium in District Kasur, Pakistan
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作者 H. Rashid J. Takemura A.M. Farooqi 《Journal of Environmental Science and Engineering》 2011年第7期835-843,共9页
Due to improper tannery wastewater management in district Kasur Pakistan, groundwater has been reported to be highly contaminated. It was aimed to find out the extent up to which subsurface has contaminated due to chr... Due to improper tannery wastewater management in district Kasur Pakistan, groundwater has been reported to be highly contaminated. It was aimed to find out the extent up to which subsurface has contaminated due to chromium in areas adjacent to the tannery units. Eight (8) soil bores were conducted up to the depth of 30.5 meters and soil samples were tested for total and hexavalent chromium concentrations retained in soil by aqua regia digestion at the every depth of 1.5 meters. Afterwards monitoring wells were installed in these eight (8) bores so as to monitor chromium concentrations in the groundwater on monthly basis. The main source of contamination was considered to be the four (4) drains carrying tanneries effluent therefore samples were collected from these drains so as to observe seasonal variation in chromium concentration. 展开更多
关键词 Groundwater and soil contamination soil boring monitoring wells CHROMIUM tannery wastewater.
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气相液相色谱测定地下水中十种有机物的方法研究
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作者 钟李军 张小芹 《中国石油和化工标准与质量》 2024年第2期43-45,共3页
近年来,国家地质局积极采取措施,加强对地下水质量的监测和管控,特别是对有机污染物的控制,引起了社会各界的广泛关注。在地下水质量检测中,BHC以及DDT的四种不同的异构体、六氯苯、苯并芘最受关注。通常,气相色谱法和液相色谱法被广泛... 近年来,国家地质局积极采取措施,加强对地下水质量的监测和管控,特别是对有机污染物的控制,引起了社会各界的广泛关注。在地下水质量检测中,BHC以及DDT的四种不同的异构体、六氯苯、苯并芘最受关注。通常,气相色谱法和液相色谱法被广泛应用于检测有机污染物。通过气相色谱法,可以快速、准确地测量具有高度热稳定性和易气化特性的有机物质;液相色谱法可以适用于具有较低的热稳定性和难以气化的有机污染物。基于国家地质局规定的地下有机污染物分析标准,本研究采用气相色谱法和液相色谱法,对地下水样品中的10种有机污染物进行了检测分析。 展开更多
关键词 气相色谱法 液相色谱法 地下样品 有机污染物
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Seasonal Variations of Hydrochemical Characteristics of Groundwater in Changping Plain, Beijing 被引量:4
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作者 JIANG Tisheng QI Junyu +3 位作者 WANG Mingyu LIU Qingzhe QU Cixiao CHU Junyao 《Journal of Resources and Ecology》 CSCD 2017年第6期655-663,共9页
Changping Plain, located in the northwest of Beijing, has become an important groundwater recharge area for the Beijing Plain and an important source for the urban water supply. In this study, groundwater samples were... Changping Plain, located in the northwest of Beijing, has become an important groundwater recharge area for the Beijing Plain and an important source for the urban water supply. In this study, groundwater samples were collected during the dry and wet seasons in 2015 from 24 monitoring wells distributed in Changping Plain. A Piper-Tri-linear diagram, a Schoeller diagram, a Gibbs diagram, and the isotope technique were used to investigate the temporal and spatial variations in the concentrations of groundwater hydrochemicals and the sources of groundwater recharge. The results indicated: 1) seasonal variations in the concentrations of HCO3^–, Ca^2+, and Na^+ were significant; the spatial variations of these ions were more dramatic in the dry season than in the wet season due to the dilution effect of precipitation; 2) Most groundwater samples had a HCO3-Ca-Mg based hydrochemical type and a few had a HCO3-Na-K based hydrochemical type; the hydrochemical type tended to evolve from HCO3-Ca-Mg based to HCO3-Na-K based in some monitoring wells that showed distinct seasonal variation; 3) the groundwater in the study area originated mainly from atmospheric precipitation, and it is affected by evaporation and concentration processes. 展开更多
关键词 hydrochemical characteristics groundwater samples isotope analysis rock weathering piper-trilinear diagram
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