Article(id=1156987914006651628, tenantId=1146029695717560320, journalId=1146119944283992078, issueId=1156888345994420815, 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=1753777014494, onlineDateStr=2025-07-29, pubDate=null, pubDateStr=null, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1753777014494, onlineIssueDateStr=2025-07-29, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1753777014494, creator=13701087609, updateTime=1753777014494, updator=13701087609, issue=Issue{id=1156888345994420815, tenantId=1146029695717560320, journalId=1146119944283992078, year='2024', volume='2', issue='5', pageStart='1', pageEnd='160', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1753753275630, creator=13701087609, updateTime=1753785212113, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1157022297358951363, tenantId=1146029695717560320, journalId=1146119944283992078, issueId=1156888345994420815, language=EN, specialIssueTitle=, coverIllustrator=, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1157022297358951364, tenantId=1146029695717560320, journalId=1146119944283992078, issueId=1156888345994420815, language=CN, specialIssueTitle=, coverIllustrator=, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=26, endPage=30, ext={EN=ArticleExt(id=1156987915353023228, articleId=1156987914006651628, tenantId=1146029695717560320, journalId=1146119944283992078, language=EN, title=Quantitative acid addition nonlinear fitting method for rapid determination of neutral degreaser concentration, columnId=1156641065621906129, journalTitle=Laboratory Testing, columnName=Innovative Applications, runingTitle=null, highlight=null, articleAbstract=
Objective To establish a rapid method for the determination of neutral degreaser concentration by quantitative acid addition and nonlinear fitting, and to solve the problem of titration method and weighing method lack of accuracy and detection efficiency. Methods Prepare the working curve solutions of different concentrations by using the degreaser original solution, and measure the $\mathrm{{pH}}$ value after adding a quantitative amount of acid.The relationship function between the $\mathrm{{pH}}$ value and the concentration of degreaser is obtained by non-linear fitting, and then the concentration in the production sites degreasing solution is calculated by the function.Explore the amount of acid added, curve fitting method, and fitting order, and determine the optimal experimental conditions. Results The method was applied to the rapid determination of neutral degreaser concentration, with a relative standard deviation (RSD) of 0.85% to 1.17% and a recovery rate between 98.52% to 103.34%. Conclusion The new method proposed in this study is accurate, reliable, simple and rapid.And overcomes the shortcomings of traditional titration and gravimetric methods, it can effectively guide the application of neutral degreaser and improve the surface quality of metal materials.
, correspAuthors=Shao-Wen LI, authorNote=null, correspAuthorsNote=
*LI Shao-Wen, Engineer, Director of Chemical Analysis Laboratory, Chinalco Luoyang Copper Co., Ltd., Luoyang 471039, China. E-mail:
lsw1019@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=Shao-Wen LI, Yan-Bo ZHANG, Yi-Fan LIU), CN=ArticleExt(id=1156987926547620712, articleId=1156987914006651628, tenantId=1146029695717560320, journalId=1146119944283992078, language=CN, title=定量加酸-非线性拟合法快速测定中性脱脂剂浓度, columnId=1151957373175820401, journalTitle=实验室检测, columnName=创新应用, runingTitle=null, highlight=null, articleAbstract=
目的 建立定量加酸 - 非线性拟合测定中性脱脂剂浓度的快速检测方法, 解决滴定法和重量法在准确度和检测效率上不足的问题。方法 采用脱脂剂原液配制成不同浓度的工作曲线溶液, 在其中加入定量的酸后测定其 $\mathrm{{pH}}$ 值,将测得的 $\mathrm{{pH}}$ 值与脱脂剂浓度采用非线性拟合得出关系函数,进而利用该函数计算得到现场脱脂液中的脱脂剂浓度。对酸的加入量、曲线拟合方式和拟合阶数进行探索并得出最佳试验条件。结果 将该方法用于中性脱脂剂浓度的快速测定,测定结果相对标准偏差 (Relative Standard Deviation, RSD) 为 0.85%~1.17%,回收率在 98.52%~103.34% 之间。结论 本研究提出的新方法准确可靠、简便快速,克服了传统滴定法和重量法方法的不足, 可以有效指导中性脱脂剂的应用, 进而提高金属材料的表面质量。
, correspAuthors=李绍文, authorNote=null, correspAuthorsNote=
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李绍文,工程师,化学分析室主任,研究方向:金属材料及其工艺介质、矿冶产品化学分析。
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李绍文,工程师,化学分析室主任,研究方向:金属材料及其工艺介质、矿冶产品化学分析。
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李绍文,工程师,化学分析室主任,研究方向:金属材料及其工艺介质、矿冶产品化学分析。
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2022, (09): 75-78., articleTitle=涤纶短纤维拉伸性能测试的最佳取样量研究, refAbstract=null)], funds=null, companyList=[AuthorCompany(id=1156987936047719365, tenantId=1146029695717560320, journalId=1146119944283992078, articleId=1156987914006651628, xref=null, ext=[AuthorCompanyExt(id=1156987936056107974, tenantId=1146029695717560320, journalId=1146119944283992078, articleId=1156987914006651628, companyId=1156987936047719365, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=Chinalco Luoyang Copper Co., Ltd. Luoyang 471039 China), AuthorCompanyExt(id=1156987937356342227, tenantId=1146029695717560320, journalId=1146119944283992078, articleId=1156987914006651628, companyId=1156987936047719365, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=中铝洛阳铜加工有限公司 洛阳 471039)])], figs=[ArticleFig(id=1156987942787965036, tenantId=1146029695717560320, journalId=1146119944283992078, articleId=1156987914006651628, language=EN, label=Fig. 1, caption=
Working curve, figureFileSmall=nycTbHYvNdbmzMrdrKmTSw==, figureFileBig=Bi7TfRDqr/lUO5VJXU8M8g==, tableContent=null), ArticleFig(id=1156987942892822639, tenantId=1146029695717560320, journalId=1146119944283992078, articleId=1156987914006651628, language=CN, label=图 1, caption=
工作曲线, figureFileSmall=nycTbHYvNdbmzMrdrKmTSw==, figureFileBig=Bi7TfRDqr/lUO5VJXU8M8g==, tableContent=null), ArticleFig(id=1156987942959931506, tenantId=1146029695717560320, journalId=1146119944283992078, articleId=1156987914006651628, language=EN, label=Table 1, caption=
$\mathrm{{pH}}$ value of the working curve solution after adding acid, figureFileSmall=null, figureFileBig=null, tableContent=
| 脱脂剂浓度 (% ) | 0.50 | 1.00 | 1.50 | 2.00 | 2.50 | 3.00 | 3.50 | 4.00 |
| 加酸后 pH 值 | 2.75 | 3.04 | 3.59 | 4.25 | 4.79 | 5.08 | 5.36 | 5.56 |
), ArticleFig(id=1156987943027040373, tenantId=1146029695717560320, journalId=1146119944283992078, articleId=1156987914006651628, language=CN, label=表 1, caption=
加酸后工作曲线溶液$\mathrm{{pH}}$值, figureFileSmall=null, figureFileBig=null, tableContent=
| 脱脂剂浓度 (% ) | 0.50 | 1.00 | 1.50 | 2.00 | 2.50 | 3.00 | 3.50 | 4.00 |
| 加酸后 pH 值 | 2.75 | 3.04 | 3.59 | 4.25 | 4.79 | 5.08 | 5.36 | 5.56 |
), ArticleFig(id=1156987943140286585, tenantId=1146029695717560320, journalId=1146119944283992078, articleId=1156987914006651628, language=EN, label=Table 2, caption=
Fitting Results of Different Methods, figureFileSmall=null, figureFileBig=null, tableContent=
| 拟合方式 | 拟合函数 | 相关系数 $r$ |
| 线性拟合 | y $={1.1258}\mathrm{x}- {2.5938}$ | 0.9862 |
| 指数函数拟合 | $\mathrm{y}= {0.1222}{\mathrm{e}}^{{0.6355}\mathrm{x}}$ | 0.9692 |
| 幂函数拟合 | $y ={0.047}{x}^{2.582}$ | 0.9810 |
| 对数函数拟合 | y = 4.4628ln(x)-4.1289 | 0.9738 |
| 二阶多项式拟合 | $y ={0.1866}{x}^{2}- {0.4254x}+ {0.4377}$ | 0.9928 |
| 三阶多项式拟合 | $y ={0.2557}{x}^{3}- {3.0169}{x}^{2}+ {12.562x}- {16.529}$ | 0.9997 |
), ArticleFig(id=1156987943219978365, tenantId=1146029695717560320, journalId=1146119944283992078, articleId=1156987914006651628, language=CN, label=表 2, caption=
不同方式的拟合结果, figureFileSmall=null, figureFileBig=null, tableContent=
| 拟合方式 | 拟合函数 | 相关系数 $r$ |
| 线性拟合 | y $={1.1258}\mathrm{x}- {2.5938}$ | 0.9862 |
| 指数函数拟合 | $\mathrm{y}= {0.1222}{\mathrm{e}}^{{0.6355}\mathrm{x}}$ | 0.9692 |
| 幂函数拟合 | $y ={0.047}{x}^{2.582}$ | 0.9810 |
| 对数函数拟合 | y = 4.4628ln(x)-4.1289 | 0.9738 |
| 二阶多项式拟合 | $y ={0.1866}{x}^{2}- {0.4254x}+ {0.4377}$ | 0.9928 |
| 三阶多项式拟合 | $y ={0.2557}{x}^{3}- {3.0169}{x}^{2}+ {12.562x}- {16.529}$ | 0.9997 |
), ArticleFig(id=1156987943299670143, tenantId=1146029695717560320, journalId=1146119944283992078, articleId=1156987914006651628, language=EN, label=Table 3, caption=
Sum of squared residuals of functions of different orders, figureFileSmall=null, figureFileBig=null, tableContent=
| 拟合阶数 | 拟合函数 | 残差平方和 (%) |
| 3 | $\mathrm{y}= {0.2557}{\mathrm{x}}^{3}- {3.0169}{\mathrm{x}}^{2}+ {12.562}\mathrm{x}- {16.529}$ | 0.0053 |
| 4 | y=-0.0369 ${\mathrm{x}}^{4}+ {0.8721}{\mathrm{x}}^{3}- {6.7989}{\mathrm{x}}^{2}+ {22.655}\mathrm{x}- {26.404}$ | 0.0050 |
| 5 | $\mathrm{y}= {0.024}{\mathrm{x}}^{5}- {0.5357}{\mathrm{x}}^{4}+ {4.964}{\mathrm{x}}^{3}- {23.32}{\mathrm{x}}^{2}+ {55.463}\mathrm{x}- {52.031}$ | 0.1279 |
| 6 | $\mathrm{y}= -{0.0376}{\mathrm{x}}^{6}+ {0.9605}{\mathrm{x}}^{5}- {10.14}{\mathrm{x}}^{4}+ {56.843}{\mathrm{x}}^{3}- {178.92}{\mathrm{x}}^{2}+ {301.09}\mathrm{x}- {211.45}$ | 0.0664 |
), ArticleFig(id=1156987943366779009, tenantId=1146029695717560320, journalId=1146119944283992078, articleId=1156987914006651628, language=CN, label=表 3, caption=
不同阶数函数的残差平方和, figureFileSmall=null, figureFileBig=null, tableContent=
| 拟合阶数 | 拟合函数 | 残差平方和 (%) |
| 3 | $\mathrm{y}= {0.2557}{\mathrm{x}}^{3}- {3.0169}{\mathrm{x}}^{2}+ {12.562}\mathrm{x}- {16.529}$ | 0.0053 |
| 4 | y=-0.0369 ${\mathrm{x}}^{4}+ {0.8721}{\mathrm{x}}^{3}- {6.7989}{\mathrm{x}}^{2}+ {22.655}\mathrm{x}- {26.404}$ | 0.0050 |
| 5 | $\mathrm{y}= {0.024}{\mathrm{x}}^{5}- {0.5357}{\mathrm{x}}^{4}+ {4.964}{\mathrm{x}}^{3}- {23.32}{\mathrm{x}}^{2}+ {55.463}\mathrm{x}- {52.031}$ | 0.1279 |
| 6 | $\mathrm{y}= -{0.0376}{\mathrm{x}}^{6}+ {0.9605}{\mathrm{x}}^{5}- {10.14}{\mathrm{x}}^{4}+ {56.843}{\mathrm{x}}^{3}- {178.92}{\mathrm{x}}^{2}+ {301.09}\mathrm{x}- {211.45}$ | 0.0664 |
), ArticleFig(id=1156987943412916356, tenantId=1146029695717560320, journalId=1146119944283992078, articleId=1156987914006651628, language=EN, label=Table 4, caption=
Calculation results of functions of different orders, figureFileSmall=null, figureFileBig=null, tableContent=
| 样品序号 | 加酸后 $\mathrm{{pH}}$ 值 | 浓度 (%)(3 阶函数) | 浓度 (%)( 4 阶函数) | 浓度 (%)( 5 阶函数) | 浓度 (%)( 6 阶函数) |
| 1# | 2.88 | 0.73 | 0.74 | 0.76 | 0.76 |
| 2# | 3.12 | 1.06 | 1.09 | 1.10 | 1.10 |
| 3# | 3.48 | 1.43 | 1.44 | 1.45 | 1.44 |
| 4# | 4.05 | 1.85 | 1.84 | 1.87 | 1.88 |
| 5# | 4.88 | 2.64 | 2.66 | 2.78 | 2.75 |
| 6# | 5.09 | 2.97 | 3.00 | 3.13 | 3.10 |
| 7# | 5.35 | 3.48 | 3.51 | 3.68 | 3.63 |
| 8# | 5.57 | 4.03 | 4.04 | 4.26 | 4.17 |
), ArticleFig(id=1156987943467442309, tenantId=1146029695717560320, journalId=1146119944283992078, articleId=1156987914006651628, language=CN, label=表 4, caption=
不同阶数函数的计算结果, figureFileSmall=null, figureFileBig=null, tableContent=
| 样品序号 | 加酸后 $\mathrm{{pH}}$ 值 | 浓度 (%)(3 阶函数) | 浓度 (%)( 4 阶函数) | 浓度 (%)( 5 阶函数) | 浓度 (%)( 6 阶函数) |
| 1# | 2.88 | 0.73 | 0.74 | 0.76 | 0.76 |
| 2# | 3.12 | 1.06 | 1.09 | 1.10 | 1.10 |
| 3# | 3.48 | 1.43 | 1.44 | 1.45 | 1.44 |
| 4# | 4.05 | 1.85 | 1.84 | 1.87 | 1.88 |
| 5# | 4.88 | 2.64 | 2.66 | 2.78 | 2.75 |
| 6# | 5.09 | 2.97 | 3.00 | 3.13 | 3.10 |
| 7# | 5.35 | 3.48 | 3.51 | 3.68 | 3.63 |
| 8# | 5.57 | 4.03 | 4.04 | 4.26 | 4.17 |
), ArticleFig(id=1156987943547134087, tenantId=1146029695717560320, journalId=1146119944283992078, articleId=1156987914006651628, language=EN, label=Table 5, caption=
Interference test for lubricating oil addition, figureFileSmall=null, figureFileBig=null, tableContent=
| 样品编号 | 理论值 (%) | 未加入润滑油结果 (%) | 加入润滑油结果 (%) |
| 1 | 1.00 | 0.98 | 0.99 |
| 2 | 2.00 | 2.01 | 2.00 |
| 3 | 3.00 | 2.99 | 2.97 |
), ArticleFig(id=1156987943601660041, tenantId=1146029695717560320, journalId=1146119944283992078, articleId=1156987914006651628, language=CN, label=表 5, caption=
润滑油加入干扰试验, figureFileSmall=null, figureFileBig=null, tableContent=
| 样品编号 | 理论值 (%) | 未加入润滑油结果 (%) | 加入润滑油结果 (%) |
| 1 | 1.00 | 0.98 | 0.99 |
| 2 | 2.00 | 2.01 | 2.00 |
| 3 | 3.00 | 2.99 | 2.97 |
), ArticleFig(id=1156987943651991691, tenantId=1146029695717560320, journalId=1146119944283992078, articleId=1156987914006651628, language=EN, label=Table 6, caption=
Repeatability tests, figureFileSmall=null, figureFileBig=null, tableContent=
| 样品编号 | 测定结果 (%) | 平均值 (%) | 相对标准偏差 (%) |
| 1 | 1.56,1.56,1.55,1.56,1.58,1.54 | 1.56 | 0.85 |
| 2 | 2.33,2.32,2.35,2.33,2.34,2.35 | 2.34 | 0.52 |
| 3 | 1.86,1.90,1.88,1.91,1.92,1.88 | 1.89 | 1.17 |
), ArticleFig(id=1156987943752654989, tenantId=1146029695717560320, journalId=1146119944283992078, articleId=1156987914006651628, language=CN, label=表 6, caption=
重复性试验, figureFileSmall=null, figureFileBig=null, tableContent=
| 样品编号 | 测定结果 (%) | 平均值 (%) | 相对标准偏差 (%) |
| 1 | 1.56,1.56,1.55,1.56,1.58,1.54 | 1.56 | 0.85 |
| 2 | 2.33,2.32,2.35,2.33,2.34,2.35 | 2.34 | 0.52 |
| 3 | 1.86,1.90,1.88,1.91,1.92,1.88 | 1.89 | 1.17 |
), ArticleFig(id=1156987943807180943, tenantId=1146029695717560320, journalId=1146119944283992078, articleId=1156987914006651628, language=EN, label=Table 7, caption=
Spiked recovery tests, figureFileSmall=null, figureFileBig=null, tableContent=
| 样品编号 | 已知样品浓度 (%) | 原液加入体积 ($\mathrm{{mL}}$) | 加标后测定浓度 (%) | 回收率 (%) |
| 1 | 1.56 | 1.00 | 2.52 | 98.52 |
| 2 | 2.34 | 1.00 | 3.34 | 103.34 |
| 3 | 1.89 | 1.00 | 2.89 | 102.89 |
), ArticleFig(id=1156987943870095505, tenantId=1146029695717560320, journalId=1146119944283992078, articleId=1156987914006651628, language=CN, label=表 7, caption=
加标回收试验, figureFileSmall=null, figureFileBig=null, tableContent=
| 样品编号 | 已知样品浓度 (%) | 原液加入体积 ($\mathrm{{mL}}$) | 加标后测定浓度 (%) | 回收率 (%) |
| 1 | 1.56 | 1.00 | 2.52 | 98.52 |
| 2 | 2.34 | 1.00 | 3.34 | 103.34 |
| 3 | 1.89 | 1.00 | 2.89 | 102.89 |
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