Article(id=1156967454300790856, 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=1753772136520, onlineDateStr=2025-07-29, pubDate=null, pubDateStr=null, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1753772136520, onlineIssueDateStr=2025-07-29, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1753772136520, creator=13701087609, updateTime=1753772136520, 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=111, endPage=114, ext={EN=ArticleExt(id=1156967455777185887, articleId=1156967454300790856, tenantId=1146029695717560320, journalId=1146119944283992078, language=EN, title=Evaluation of measurement uncertainty for the determination of phosphate in water by ion chromatography, columnId=1156641066674676444, journalTitle=Laboratory Testing, columnName=Evaluation and Analysis, runingTitle=null, highlight=null, articleAbstract=
Objective In chemical analysis, the focus used to be on theprecision and accuracy of detection results. However, many testingactivities currently require establishing the credibility of theresults. Especially by measuring the credibility of the results to provetheir suitability, this generally includes the degree to which oneoutcome is expected to match other outcomes, which is also thesignificance of exploring uncertainty. Methods According to theCNAS-GL06 Guidelines for Evaluation of Uncertainty in Chemical Analysis,this article detected the content of phosphate ions in a certainindustrial wastewater and studied and analyzed the components thataffect measurement uncertainty during the experimental process. ResultsThrough calculation, it can be concluded that when the result ofphosphate ion is ${3.00}\mathrm{{mg}}/\mathrm{L}$ , theconfidence interval is ${2.86}-{3.14}\mathrm{{mg}}/\mathrm{L}\left({\mathrm{k}= 2}\right)$ . Conclusion The main factor affecting its measurement uncertainty is theuncertainty introduced by the calibration curve fitting. In order tomake the detection results more scientific and accurate, it is necessaryto pay attention to the maintenance and upkeep of the ion chromatographin daily work, minimize the background noise of the instrument, andimprove the sensitivity and accuracy of the instrument.
, correspAuthors=Mei-Juan ZENG, authorNote=null, correspAuthorsNote=
*ZENG Mei-Juan, Engineer, Inspector, Qingyuan Qinghuan Testing Technology Co., Ltd., Qingyuan 511500, China. E-mail:
932981979@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=Mei-Juan ZENG), CN=ArticleExt(id=1156967473938522463, articleId=1156967454300790856, tenantId=1146029695717560320, journalId=1146119944283992078, language=CN, title=离子色谱法测定水中磷酸根的测量不确定度评定, columnId=1152194691782505406, journalTitle=实验室检测, columnName=评价与分析, runingTitle=null, highlight=null, articleAbstract=
目的 在化学分析中,过去通常把重点放在检测结果的精密度和准确度上。但是,目前很多检测活动都要求建立结果的可信度。特别是通过度量结果的可信度来证明结果的适宜性,这一般包括期望某个结果与其他结果相吻合的程度,这也是我们探究不确定度的意义。方法 本文据 CNAS-GL06化学分析中不确定度的评估指南,对某工业废水中磷酸根含量进行了检测,对实验过程中影响测量不确定度的分量进行了研究与分析。结果 通过计算可知,当磷酸根结果为 ${3.00}\mathrm{{mg}}/\mathrm{L}$ 时,其可信度区间为 ${2.86}-{3.14}\mathrm{{mg}}/\mathrm{L}\left({\mathrm{k}=2}\right)$ 。结论 影响其测量不确定度的主要因素是校准曲线拟合引入的不确定度。为了使检测结果更加科学准确,在日常工作中, 要注意离子色谱仪的维护及保养, 尽量降低仪器背景噪声,提高仪器灵敏度和准确度。
, correspAuthors=曾梅娟, authorNote=null, correspAuthorsNote=
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 |
曾梅娟,生态环境监测工程师,研究方向为生态环境水质监测技术研究、有机化合物前处理技术研究等。 |
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Analysis conditions of gradient program for hydroxide leaching solution, figureFileSmall=null, figureFileBig=null, tableContent=
| 时间 (min) | 氢氧根淋洗液 (mmol/L) |
| 0 | 20 |
| 10 | 20 |
| 25 | 45 |
| 30 | 20 |
), ArticleFig(id=1156967487465153149, tenantId=1146029695717560320, journalId=1146119944283992078, articleId=1156967454300790856, language=CN, label=表 1, caption=
氢氧根淋洗液梯度程序分析条件, figureFileSmall=null, figureFileBig=null, tableContent=
| 时间 (min) | 氢氧根淋洗液 (mmol/L) |
| 0 | 20 |
| 10 | 20 |
| 25 | 45 |
| 30 | 20 |
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| 校准曲线点 | 浓度 $x\left({\mathrm{\;{mg}}/\mathrm{L}}\right)$ | 峰面积 $y\left({\mu \mathrm{S}\cdot \min }\right)$ |
| 1 | 0.00 | 0.000 |
| 2 | 0.560 | 0.086 |
| 3 | 1.010 | 0.173 |
| 4 | 2.459 | 0.453 |
| 5 | 4.929 | 0.929 |
| 6 | 10.042 | 1.919 |
| $y ={bx}+ a$ | $b ={0.193}$$a =- {0.0219}$ | $\mathrm{r}= {0.9998}$ |
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| 校准曲线点 | 浓度 $x\left({\mathrm{\;{mg}}/\mathrm{L}}\right)$ | 峰面积 $y\left({\mu \mathrm{S}\cdot \min }\right)$ |
| 1 | 0.00 | 0.000 |
| 2 | 0.560 | 0.086 |
| 3 | 1.010 | 0.173 |
| 4 | 2.459 | 0.453 |
| 5 | 4.929 | 0.929 |
| 6 | 10.042 | 1.919 |
| $y ={bx}+ a$ | $b ={0.193}$$a =- {0.0219}$ | $\mathrm{r}= {0.9998}$ |
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Determination results of phosphate content in a certain water sample, figureFileSmall=null, figureFileBig=null, tableContent=
| 序号 | 测量值 ${x}^{\prime }\left({\mathrm{{mg}}/\mathrm{L}}\right)$ |
| 1 | 3.00 |
| 2 | 3.00 |
| 3 | 3.03 |
| 4 | 3.00 |
| 5 | 3.02 |
| 6 | 2.98 |
| 7 | 2.99 |
| ${\overrightarrow{x}}^{\prime }\left({\mathrm{{mg}}/\mathrm{L}}\right)$ | 3.00 |
| 标准偏差 s(mg/L) | 0.017 |
), ArticleFig(id=1156967487796503181, tenantId=1146029695717560320, journalId=1146119944283992078, articleId=1156967454300790856, language=CN, label=表 3, caption=
某水样中磷酸根含量测定结果, figureFileSmall=null, figureFileBig=null, tableContent=
| 序号 | 测量值 ${x}^{\prime }\left({\mathrm{{mg}}/\mathrm{L}}\right)$ |
| 1 | 3.00 |
| 2 | 3.00 |
| 3 | 3.03 |
| 4 | 3.00 |
| 5 | 3.02 |
| 6 | 2.98 |
| 7 | 2.99 |
| ${\overrightarrow{x}}^{\prime }\left({\mathrm{{mg}}/\mathrm{L}}\right)$ | 3.00 |
| 标准偏差 s(mg/L) | 0.017 |
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