Article(id=1156967449649307683, tenantId=1146029695717560320, journalId=1146119944283992078, issueId=1156967445161402379, articleNumber=null, orderNo=null, doi=null, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=null, receivedDateStr=null, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1753772135411, onlineDateStr=2025-07-29, pubDate=null, pubDateStr=null, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1753772135411, onlineIssueDateStr=2025-07-29, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1753772135411, creator=13701087609, updateTime=1753772135411, updator=13701087609, issue=Issue{id=1156967445161402379, tenantId=1146029695717560320, journalId=1146119944283992078, year='2024', volume='2', issue='6', pageStart='1', pageEnd='160', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=0, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1753772134342, creator=13701087609, updateTime=1753777952624, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1156991848855200553, tenantId=1146029695717560320, journalId=1146119944283992078, issueId=1156967445161402379, language=EN, specialIssueTitle=, coverIllustrator=, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1156991848855200554, tenantId=1146029695717560320, journalId=1146119944283992078, issueId=1156967445161402379, language=CN, specialIssueTitle=, coverIllustrator=, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=154, endPage=156, ext={EN=ArticleExt(id=1156967450827907113, articleId=1156967449649307683, tenantId=1146029695717560320, journalId=1146119944283992078, language=EN, title=Analysis on the precautions for determination of sulfide in drinking water by N,N-Diethyl-p-phenylenediamine spectrophotometry, columnId=1156641066674676444, journalTitle=Laboratory Testing, columnName=Evaluation and Analysis, runingTitle=null, highlight=null, articleAbstract=
Objective Analyze and summarize the factors and precautions that affect the use of N, N-diethylphenylenediamine spectrophotometry for the determination of sulfides in water through experimental analysis. Methods N,N-diethyl-p-phenylenediamine spectrophotometry was used for the determination of sulfide in water. The accuracy and precision of the method were verified by the standard samples with known sulfide content, and all aspects of the experiment were analyzed. Result The N,N-diethyl-p-phenylenediamine spectrophotometry method for the determination of sulfides in water meets the analytical requirements in terms of linearity, precision, and accuracy, making it suitable for the detection of sulfides in clean water. Conclusion When doing the experiment, attention should be paid to sampling, preparation and absorption of standard solutions, and preparation of colorimetric solutions etc. in order to achieve satisfactory results.
, correspAuthors=Chi-Qing LIU, authorNote=null, correspAuthorsNote=
*LIU Chi-Qing, Deputy chief technician, Center for Disease Control and Prevention of Wuhua District, Kunming 650032, China. E-mail:
19643175@qq.com, copyrightStatement=null, 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, authorCompany=null, fund=null, authors=null, authorsList=Chi-Qing LIU, Jia-Cui MA, Fa-Mei GENG), CN=ArticleExt(id=1156967451033428010, articleId=1156967449649307683, tenantId=1146029695717560320, journalId=1146119944283992078, language=CN, title=N,N-二乙基对苯二胺分光光度法检测生活饮用水中硫化物的注意事项探析, columnId=1152194691782505406, journalTitle=实验室检测, columnName=评价与分析, runingTitle=null, highlight=null, articleAbstract=
目的 通过实验分析并总结影响使用N,N-二乙基对苯二胺分光光度法进行水中硫化物测定的因素和注意事项。方法 采用N,N-二乙基对苯二胺分光光度法检测水中硫化物,用已知硫化物含量的标准样品验证方法准确性和精密度,对实验过程中的各个环节进行分析。结果 $\mathrm{N},\mathrm{N}$ -二乙基对苯二胺分光光度法测定水中硫化物,其方法线性、精密度、准确性均满足分析要求,适合应用于清洁水中硫化物的检测。结论 实验过程中需注意采样、标准溶液的配制和吸取、显色液的配制等环节,才能有满意的结果。
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Detection standard curve of sulfide, figureFileSmall=null, figureFileBig=null, tableContent=
| 硫化物质量 (μg) | 0 | 1 | 2 | 3 | 4 | 6 | 8 | 10 |
| 吸光度值 | 0.036 | 0.100 | 0.179 | 0.245 | 0.328 | 0.493 | 0.644 | 0.787 |
| 工作曲线 | $\mathrm{y}= {0.0764}\mathrm{x}+ {0.0267},\mathrm{r}= {0.9996}$ |
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硫化物检测标准曲线, figureFileSmall=null, figureFileBig=null, tableContent=
| 硫化物质量 (μg) | 0 | 1 | 2 | 3 | 4 | 6 | 8 | 10 |
| 吸光度值 | 0.036 | 0.100 | 0.179 | 0.245 | 0.328 | 0.493 | 0.644 | 0.787 |
| 工作曲线 | $\mathrm{y}= {0.0764}\mathrm{x}+ {0.0267},\mathrm{r}= {0.9996}$ |
), ArticleFig(id=1156967457626873981, tenantId=1146029695717560320, journalId=1146119944283992078, articleId=1156967449649307683, language=EN, label=Table 2, caption=
Determination of spiked recovery rate, figureFileSmall=null, figureFileBig=null, tableContent=
| 硫化含量 (μg) | 加标回收率(%) |
| 水样本底值 | 加标量 | | 测定值 |
| 0 | 2.0 | 1.758 | 1.863 | 1.889 | 1.810 | 1.849 | 1.928 | 87.9~96.4 |
| 0 | 6.0 | 5.855 | 5.815 | 5.973 | 5.920 | 6.025 | 5.750 | 95.8~100.4 |
), ArticleFig(id=1156967457698177150, tenantId=1146029695717560320, journalId=1146119944283992078, articleId=1156967449649307683, language=CN, label=表 2, caption=
加标回收率测定, figureFileSmall=null, figureFileBig=null, tableContent=
| 硫化含量 (μg) | 加标回收率(%) |
| 水样本底值 | 加标量 | | 测定值 |
| 0 | 2.0 | 1.758 | 1.863 | 1.889 | 1.810 | 1.849 | 1.928 | 87.9~96.4 |
| 0 | 6.0 | 5.855 | 5.815 | 5.973 | 5.920 | 6.025 | 5.750 | 95.8~100.4 |
), ArticleFig(id=1156967457761091711, tenantId=1146029695717560320, journalId=1146119944283992078, articleId=1156967449649307683, language=EN, label=Table 3, caption=
Standard sample determination, figureFileSmall=null, figureFileBig=null, tableContent=
| 六次测定值 (mg/L) | | 平均值 (mg/L) | RSD (%) |
| 2.61 | 2.55 | 2.69 | 2.83 | 2.77 | 2.78 | 2.71 | 3.97 |
), ArticleFig(id=1156967457853366401, tenantId=1146029695717560320, journalId=1146119944283992078, articleId=1156967449649307683, language=CN, label=表 3, caption=
标准样品测定, figureFileSmall=null, figureFileBig=null, tableContent=
| 六次测定值 (mg/L) | | 平均值 (mg/L) | RSD (%) |
| 2.61 | 2.55 | 2.69 | 2.83 | 2.77 | 2.78 | 2.71 | 3.97 |
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