Article(id=1320438104314467308, tenantId=1146029695717560320, journalId=1319373219989389464, issueId=1320438006813672182, articleNumber=null, orderNo=null, doi=10.11847/zgggws1146444, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1731081600000, receivedDateStr=2024-11-09, revisedDate=1746720000000, revisedDateStr=2025-05-09, acceptedDate=1762704000000, acceptedDateStr=2025-11-10, onlineDate=1792746576622, onlineDateStr=2026-10-23, pubDate=1773072000000, pubDateStr=2026-03-10, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1792746576622, onlineIssueDateStr=2026-10-23, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1792746576622, creator=13701087609, updateTime=1792746576622, updator=13701087609, issue=Issue{id=1320438006813672182, tenantId=1146029695717560320, journalId=1319373219989389464, year='2026', volume='42', issue='3', pageStart='257', pageEnd='384', issueExtLink='null', onlineDate='null', pubDate='1773072000000', pubDateStr='2026-03-10', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1792746553376, creator='13701087609', updateTime=1792748100383, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1320444495519404406, tenantId=1146029695717560320, journalId=1319373219989389464, issueId=1320438006813672182, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1320444495519404407, tenantId=1146029695717560320, journalId=1319373219989389464, issueId=1320438006813672182, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=370, endPage=374, ext={EN=ArticleExt(id=1320438104608068592, articleId=1320438104314467308, tenantId=1146029695717560320, journalId=1319373219989389464, language=EN, title=Determination of dimethyl oxalate and diethyl oxalate in workplace air by solution absorption-high performance liquid chromatography, columnId=1320438104528376815, journalTitle=Chinese Journal of Public Health, columnName=Inspection technology, runingTitle=null, highlight=null, articleAbstract=
Objective To develop a solution absorption-high performance liquid chromatography method for the determination of dimethyl oxalate and diethyl oxalate in workplace air.
Methods Air samples were collected by porous glass plate absorption tubes filled with the absorption liquid, separated by a C18 chromatographic column, and detected at the wavelength of 210 nm. The retention time was employed for qualitative analysis, while the peak area was utilized for quantitative analysis.
Results The concentration-signal response of dimethyl oxalate and diethyl oxalate demonstrated satisfactory linearity within the concentration range of 2 to 100 μg/mL. The results for dimethyl oxalate indicate a regression equation of y = 1 964.2x + 2 383.8 (r > 0.999). The limits of detection and quantitation were 0.28 μg/mL and 0.94 μg/mL, respectively. The intra-assay precision ranged from 0.50% to 5.77%, and the inter-assay precision ranged from 0.83% to 5.83%. The recovery rate of standard additions varied between 98.44% and 99.86%. For diethyl oxalate, the regression equation was y = 2 214.5x + 2 633.9 (r > 0.999). The limits of detection and quantitation were 0.53 μg/mL and 1.76 μg/mL, respectively. The intra-assay precision ranged from 0.68% to 6.40%, while the inter-assay precision ranged from 1.02% to 6.59%. The recovery rate of standard additions varied between 98.93% and 100.63%. Sampling efficiencies for both dimethyl oxalate and diethyl oxalate were 100%. The absorption capacity of dimethyl oxalate was measured at 37.97 mg per 5.0 mL of absorption solution, while that of diethyl oxalate was 24.97 mg per 5.0 mL of absorption solution. The samples can be stored at 4 °C for at least three days.
Conclusions This method is accurate, reliable, fast, and convenient, and the analytical performance meets the relevant requirements, which indicate that it has good potential for application in safeguarding the health of people occupationally exposed to dimethyl oxalate and diethyl oxalate.
, authors=Zhiliang CHEN
1, 2, Jinfeng JIANG
1, Weili SONG
1, authorsList=Zhiliang CHEN, Jinfeng JIANG, Weili SONG, authorCompany=null, correspAuthors=Weili SONG, authorNote=null, correspAuthorsNote=
, copyrightStatement=Copyright © 2026 Chinese Journal of Public Health. All rights reserved., copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1320438105488872439, articleId=1320438104314467308, tenantId=1146029695717560320, journalId=1319373219989389464, language=CN, title=工作场所空气中草酸二甲酯和草酸二乙酯溶液吸收–高效液相色谱法建立, columnId=1320438104696148977, journalTitle=中国公共卫生, columnName=检验技术, runingTitle=null, highlight=null, articleAbstract=
目的 建立工作场所空气中草酸二甲酯和草酸二乙酯的溶液吸收–高效液相色谱法。
方法 用装有吸收液的多孔玻板吸收管采集空气样品,经C18色谱柱分离,在210 nm波长下检测,以保留时间定性,峰面积定量。
结果 在2.0~100.0 μg/mL范围内,草酸二甲酯和草酸二乙酯的线性良好。草酸二甲酯回归方程为y=1 964.2x+2 383.8,r>0.999,检出限为0.28 μg/mL,定量下限为0.94 μg/mL,批内精密度为0.50%~5.77%,批间精密度为0.83%~5.83%,加标回收率为98.44%~99.86%;草酸二乙酯回归方程为y=2 214.5x+2 633.9,r>0.999,检出限为0.53 μg/mL,定量下限为1.76 μg/mL,批内精密度为0.68%~6.40%,批间精密度为1.02%~6.59%,加标回收率为98.93%~100.63%;草酸二甲酯和草酸二乙酯的采样效率均为100%;草酸二甲酯的吸收容量为37.97 mg(5.0 mL吸收液),草酸二乙酯的吸收容量为24.97 mg(5.0 mL吸收液);吸收液在4 ℃冰箱可保存3 d。
结论 本方法准确可靠、快速便捷,各项指标均满足规范要求,在保障职业接触人群健康方面具有良好的应用价值。
, authors=陈志亮
1, 2, 江金凤
1, 宋为丽
1, *, *, authorsList=陈志亮, 江金凤, 宋为丽, authorCompany=null, correspAuthors=宋为丽, authorNote=
陈志亮(1989—),主管技师,博士,研究方向:职业卫生理化检验
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2武汉科技大学职业危害识别与控制湖北省重点实验室,武汉 430065)])], figs=[ArticleFig(id=1320438112489164824, tenantId=1146029695717560320, journalId=1319373219989389464, articleId=1320438104314467308, language=EN, label=Fig.1, caption=
Separation chromatogram of dimethyl oxalate, diethyl oxalate, and interference substance, figureFileSmall=bvUxJ06nGSUAq3nLyVmyaA==, figureFileBig=DfLAaHu2tgsh48LIfuXSvQ==, tableContent=null), ArticleFig(id=1320438112552079385, tenantId=1146029695717560320, journalId=1319373219989389464, articleId=1320438104314467308, language=CN, label=图1, caption=
草酸二甲酯、草酸二乙酯及干扰物分离图谱, figureFileSmall=bvUxJ06nGSUAq3nLyVmyaA==, figureFileBig=DfLAaHu2tgsh48LIfuXSvQ==, tableContent=null), ArticleFig(id=1320438114066223130, tenantId=1146029695717560320, journalId=1319373219989389464, articleId=1320438104314467308, language=EN, label=Tab.1, caption=
Limit of detection and limit of quantitation
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| 化合物 | 检出限/(μg/mL) | 定量下限/(μg/mL) | 最低检出浓度(以12 L计,mg/m3) | 最低定量浓度(以12 L计,mg/m3) |
|---|
| 草酸二甲酯 | 0.28 | 0.94 | 0.12 | 0.39 |
| 草酸二乙酯 | 0.53 | 1.76 | 0.22 | 0.73 |
), ArticleFig(id=1320438114519207963, tenantId=1146029695717560320, journalId=1319373219989389464, articleId=1320438104314467308, language=CN, label=表1, caption=
检出限及定量下限实验结果
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| 化合物 | 检出限/(μg/mL) | 定量下限/(μg/mL) | 最低检出浓度(以12 L计,mg/m3) | 最低定量浓度(以12 L计,mg/m3) |
|---|
| 草酸二甲酯 | 0.28 | 0.94 | 0.12 | 0.39 |
| 草酸二乙酯 | 0.53 | 1.76 | 0.22 | 0.73 |
), ArticleFig(id=1320438114695368732, tenantId=1146029695717560320, journalId=1319373219989389464, articleId=1320438104314467308, language=EN, label=Tab.2, caption=
Method precision (μg/mL)
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| 化合物 | 组别 | 测得值 | 均值 | 精密度/% |
|---|
| 1 | 2 | 3 | 4 | 5 | 6 |
|---|
| 草酸二甲酯 | 批内 | 3.20 | 3.150 | 3.329 | 3.472 | 3.003 | 3.395 | 3.083 | 3.239 | 5.77 |
| 42.00 | 40.196 | 42.027 | 42.965 | 42.817 | 42.436 | 42.326 | 42.128 | 2.39 |
| 92.00 | 93.451 | 93.421 | 92.558 | 92.628 | 92.866 | 93.645 | 93.095 | 0.50 |
| 批间 | 3.20 | 3.472 | 3.003 | 3.274 | 3.113 | 3.116 | 2.985 | 3.161 | 5.83 |
| 42.00 | 40.196 | 42.027 | 41.575 | 41.874 | 44.548 | 43.891 | 42.352 | 3.77 |
| 92.00 | 93.451 | 93.421 | 92.324 | 91.596 | 93.103 | 93.488 | 92.897 | 0.83 |
| 草酸二乙酯 | 批内 | 2.40 | 2.160 | 2.225 | 2.503 | 2.439 | 2.535 | 2.406 | 2.378 | 6.40 |
| 33.00 | 31.853 | 31.890 | 33.091 | 33.664 | 33.085 | 33.016 | 32.767 | 2.23 |
| 72.00 | 72.936 | 73.413 | 72.32 | 72.697 | 73.336 | 72.254 | 72.826 | 0.68 |
| 批间 | 2.40 | 2.406 | 2.439 | 2.634 | 2.289 | 2.727 | 2.614 | 2.518 | 6.59 |
| 33.00 | 33.091 | 33.664 | 33.706 | 33.033 | 35.334 | 35.394 | 34.037 | 3.13 |
| 72.00 | 72.936 | 73.413 | 72.997 | 73.439 | 74.455 | 74.706 | 73.658 | 1.02 |
), ArticleFig(id=1320438115039301661, tenantId=1146029695717560320, journalId=1319373219989389464, articleId=1320438104314467308, language=CN, label=表2, caption=
方法精密度结果(μg/mL)
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| 化合物 | 组别 | 测得值 | 均值 | 精密度/% |
|---|
| 1 | 2 | 3 | 4 | 5 | 6 |
|---|
| 草酸二甲酯 | 批内 | 3.20 | 3.150 | 3.329 | 3.472 | 3.003 | 3.395 | 3.083 | 3.239 | 5.77 |
| 42.00 | 40.196 | 42.027 | 42.965 | 42.817 | 42.436 | 42.326 | 42.128 | 2.39 |
| 92.00 | 93.451 | 93.421 | 92.558 | 92.628 | 92.866 | 93.645 | 93.095 | 0.50 |
| 批间 | 3.20 | 3.472 | 3.003 | 3.274 | 3.113 | 3.116 | 2.985 | 3.161 | 5.83 |
| 42.00 | 40.196 | 42.027 | 41.575 | 41.874 | 44.548 | 43.891 | 42.352 | 3.77 |
| 92.00 | 93.451 | 93.421 | 92.324 | 91.596 | 93.103 | 93.488 | 92.897 | 0.83 |
| 草酸二乙酯 | 批内 | 2.40 | 2.160 | 2.225 | 2.503 | 2.439 | 2.535 | 2.406 | 2.378 | 6.40 |
| 33.00 | 31.853 | 31.890 | 33.091 | 33.664 | 33.085 | 33.016 | 32.767 | 2.23 |
| 72.00 | 72.936 | 73.413 | 72.32 | 72.697 | 73.336 | 72.254 | 72.826 | 0.68 |
| 批间 | 2.40 | 2.406 | 2.439 | 2.634 | 2.289 | 2.727 | 2.614 | 2.518 | 6.59 |
| 33.00 | 33.091 | 33.664 | 33.706 | 33.033 | 35.334 | 35.394 | 34.037 | 3.13 |
| 72.00 | 72.936 | 73.413 | 72.997 | 73.439 | 74.455 | 74.706 | 73.658 | 1.02 |
), ArticleFig(id=1320438117031596062, tenantId=1146029695717560320, journalId=1319373219989389464, articleId=1320438104314467308, language=EN, label=Tab.3, caption=
Method recovery rate of standard addition (μg/mL)
, figureFileSmall=null, figureFileBig=null, tableContent=
| 物质 | 加标浓度 | 测得值 | 均值 | 加标回收率/% |
|---|
| 第1次 | 第2次 | 第3次 |
|---|
| 草酸二甲酯 | 3.17 | 3.113 | 3.209 | 3.175 | 3.166 | 99.86 |
| 42.18 | 42.779 | 41.396 | 42.178 | 42.118 | 99.85 |
| 95.05 | 93.548 | 93.756 | 93.386 | 93.563 | 98.44 |
| 草酸二乙酯 | 2.42 | 2.414 | 2.437 | 2.331 | 2.394 | 98.93 |
| 32.16 | 30.843 | 33.105 | 33.033 | 32.327 | 100.52 |
| 72.46 | 72.674 | 72.771 | 73.296 | 72.914 | 100.63 |
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方法加标回收率结果(μg/mL)
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| 物质 | 加标浓度 | 测得值 | 均值 | 加标回收率/% |
|---|
| 第1次 | 第2次 | 第3次 |
|---|
| 草酸二甲酯 | 3.17 | 3.113 | 3.209 | 3.175 | 3.166 | 99.86 |
| 42.18 | 42.779 | 41.396 | 42.178 | 42.118 | 99.85 |
| 95.05 | 93.548 | 93.756 | 93.386 | 93.563 | 98.44 |
| 草酸二乙酯 | 2.42 | 2.414 | 2.437 | 2.331 | 2.394 | 98.93 |
| 32.16 | 30.843 | 33.105 | 33.033 | 32.327 | 100.52 |
| 72.46 | 72.674 | 72.771 | 73.296 | 72.914 | 100.63 |
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