Article(id=1149789898103808674, tenantId=1146029695717560320, journalId=1146119944283992078, issueId=1149789895788552854, 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=1752060873770, onlineDateStr=2025-07-09, pubDate=1742659200000, pubDateStr=2025-03-23, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1752060873770, onlineIssueDateStr=2025-07-09, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1752060873770, creator=13701087609, updateTime=1752060873770, updator=13701087609, issue=Issue{id=1149789895788552854, tenantId=1146029695717560320, journalId=1146119944283992078, year='2025', volume='3', issue='6', 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=1752060873219, creator=13701087609, updateTime=1753700598678, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1156667402856289000, tenantId=1146029695717560320, journalId=1146119944283992078, issueId=1149789895788552854, language=EN, specialIssueTitle=, coverIllustrator=, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1156667402856289001, tenantId=1146029695717560320, journalId=1146119944283992078, issueId=1149789895788552854, language=CN, specialIssueTitle=, coverIllustrator=, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=15, endPage=18, ext={CN=ArticleExt(id=1152194754478485581, articleId=1149789898103808674, tenantId=1146029695717560320, journalId=1146119944283992078, language=CN, title=碱化衍生-顶空气相色谱法测定L-丙氨酸异丙酯盐酸盐中的有关物质, columnId=1151957373175820401, journalTitle=实验室检测, columnName=创新应用, runingTitle=null, highlight=null, articleAbstract=
目的 建立碱化衍生顶空气相色谱法同时测定L丙氨酸异丙酯盐酸盐中有关物质含量。方法 色谱柱为 Agilent DB624 UI,进样口温度为200°C,分流比20:1,火焰离子化检测器(FID)温度为250℃。升温程序:起始柱温40℃,保持10 min,以40°C/min 速率升温至200℃,保持5min。以氮气为载气,流速为1.0 mL/min, 顶空平衡温度为80℃。结果 L丙氨酸甲酯盐酸盐、L丙氨酸乙酯盐酸盐、L丙氨酸正丙酯盐酸盐、L丙氨酸叔丁酯盐酸盐峰与相邻杂质峰分离度良好;定量限分别为0.0320、0.0120、0.0016、0.0039 mg/mL,检测限分别为0.0128、0.0048、0.0010、0.0016 mg/mL;在相应浓度范围内线性关系良好,相关系数r ≥ 0.998;3个水平下的平均回收率在85.0%~95.8%之间,相对标准偏差(RSD)均<5.0%。结论 建立的方法准确、可靠、灵敏,可用于L丙氨酸异丙酯盐酸盐中4种有关物质同时快速测定。
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平衡温度对标准溶液中 4 种杂质峰面积的影响, figureFileSmall=7ia2MU2FRAbjUq0SQboIUw==, figureFileBig=0mCZCr31kxNwRgpcEw7mGA==, tableContent=null), ArticleFig(id=1154353364780438390, tenantId=1146029695717560320, journalId=1146119944283992078, articleId=1149789898103808674, language=EN, label=null, caption=null, figureFileSmall=CJtyZljvWLRQdkpFyDirQg==, figureFileBig=VWcC2xbbke7GaONT22Rnjw==, tableContent=null), ArticleFig(id=1154353364839158648, tenantId=1146029695717560320, journalId=1146119944283992078, articleId=1149789898103808674, language=CN, label=图 2, caption=
顶空平衡时间对标准溶液中 4 种杂质峰面积的影响, figureFileSmall=CJtyZljvWLRQdkpFyDirQg==, figureFileBig=VWcC2xbbke7GaONT22Rnjw==, tableContent=null), ArticleFig(id=1154353364906267513, tenantId=1146029695717560320, journalId=1146119944283992078, articleId=1149789898103808674, language=EN, label=null, caption=null, figureFileSmall=ATbnXdsOtTer3+drUhO28g==, figureFileBig=cWrMszu3j9DC+GWV1YcEBA==, tableContent=null), ArticleFig(id=1154353364969182074, tenantId=1146029695717560320, journalId=1146119944283992078, articleId=1149789898103808674, language=CN, label=图 3, caption=
氢氧化钠浓度对 4 种杂质测定的影响, figureFileSmall=ATbnXdsOtTer3+drUhO28g==, figureFileBig=cWrMszu3j9DC+GWV1YcEBA==, tableContent=null), ArticleFig(id=1154353365053068156, tenantId=1146029695717560320, journalId=1146119944283992078, articleId=1149789898103808674, language=EN, label=null, caption=null, figureFileSmall=kylWKblucBC72LOGo0pmUQ==, figureFileBig=7+GsNeJM228hPQudCF6V7g==, tableContent=null), ArticleFig(id=1154353365111788414, tenantId=1146029695717560320, journalId=1146119944283992078, articleId=1149789898103808674, language=CN, label=图 4, caption=
系统适用性试验的气相色谱图 注:1-L-AMEH;2-L-AEEH;3-L-APEH;4-L-AOEH
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| 杂质 | 范围/(mg/mL) | 线性方程 | 相关系数 | 定量限 | 检测限 |
| L-AMEH | 0.0320~0.1501 | $Y = {67.613X} + {0.5516}$ | 0.9982 | 0.0320 | 0.0128 |
| L-AEEH | 0.0120~0.1501 | $Y = {235.04X} + {0.0957}$ | 0.9991 | 0.0120 | 0.0048 |
| L-APEH | 0.0016~0.1545 | $Y = {1939.30X} + {4.4260}$ | 0.9991 | 0.0016 | 0.0010 |
| L-AOEH | 0.0039 ~0.1459 | $Y = {641.99X} - {0.4493}$ | 0.9990 | 0.0039 | 0.0016 |
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4 种杂质的线性范围、线性方程、相关系数、检出限与定量限, figureFileSmall=null, figureFileBig=null, tableContent=
| 杂质 | 范围/(mg/mL) | 线性方程 | 相关系数 | 定量限 | 检测限 |
| L-AMEH | 0.0320~0.1501 | $Y = {67.613X} + {0.5516}$ | 0.9982 | 0.0320 | 0.0128 |
| L-AEEH | 0.0120~0.1501 | $Y = {235.04X} + {0.0957}$ | 0.9991 | 0.0120 | 0.0048 |
| L-APEH | 0.0016~0.1545 | $Y = {1939.30X} + {4.4260}$ | 0.9991 | 0.0016 | 0.0010 |
| L-AOEH | 0.0039 ~0.1459 | $Y = {641.99X} - {0.4493}$ | 0.9990 | 0.0039 | 0.0016 |
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| 杂质 | 浓度水平 | 加标量 /% | 检出量 /% | 回收率 /% | RSD/% |
| L-AMEH | 低 | 0.0819 | 0.0715 | 87.3 | 1.9 |
| 0.0812 | 0.0724 | 89.2 |
| 0.0821 | 0.0706 | 86.0 |
| 中 | 0.1029 | 0.0997 | 96.9 | 1.7 |
| 0.1031 | 0.0979 | 95.0 |
| 0.1001 | 0.0984 | 98.3 |
| 高 | 0.1194 | 0.1248 | 104.5 | 1.9 |
| 0.1243 | 0.1252 | 100.7 |
| 0.1205 | 0.1249 | 103.7 |
| L-AEEH | 低 | 0.0819 | 0.0760 | 92.8 | 1.4 |
| 0.0812 | 0.0740 | 91.2 |
| 0.0821 | 0.0769 | 93.7 |
| 中 | 0.1029 | 0.0963 | 93.6 | 3.2 |
| 0.1031 | 0.0967 | 93.8 |
| 0.1001 | 0.0991 | 99.0 |
| L-AEEH | 高 | 0.1194 | 0.1095 | 91.7 | 0.9 |
| 0.1243 | 0.1160 | 93.3 |
| 0.1205 | 0.1113 | 92.4 |
), ArticleFig(id=1154353365380223877, tenantId=1146029695717560320, journalId=1146119944283992078, articleId=1149789898103808674, language=CN, label=表 2, caption=
L- 丙氨酸异丙酯盐酸盐中 4 种杂质在 3 个水平下的回收率和 $\operatorname{RSD}\left( {n = 3}\right)$, figureFileSmall=null, figureFileBig=null, tableContent=
| 杂质 | 浓度水平 | 加标量 /% | 检出量 /% | 回收率 /% | RSD/% |
| L-AMEH | 低 | 0.0819 | 0.0715 | 87.3 | 1.9 |
| 0.0812 | 0.0724 | 89.2 |
| 0.0821 | 0.0706 | 86.0 |
| 中 | 0.1029 | 0.0997 | 96.9 | 1.7 |
| 0.1031 | 0.0979 | 95.0 |
| 0.1001 | 0.0984 | 98.3 |
| 高 | 0.1194 | 0.1248 | 104.5 | 1.9 |
| 0.1243 | 0.1252 | 100.7 |
| 0.1205 | 0.1249 | 103.7 |
| L-AEEH | 低 | 0.0819 | 0.0760 | 92.8 | 1.4 |
| 0.0812 | 0.0740 | 91.2 |
| 0.0821 | 0.0769 | 93.7 |
| 中 | 0.1029 | 0.0963 | 93.6 | 3.2 |
| 0.1031 | 0.0967 | 93.8 |
| 0.1001 | 0.0991 | 99.0 |
| L-AEEH | 高 | 0.1194 | 0.1095 | 91.7 | 0.9 |
| 0.1243 | 0.1160 | 93.3 |
| 0.1205 | 0.1113 | 92.4 |
), ArticleFig(id=1154353365451527047, tenantId=1146029695717560320, journalId=1146119944283992078, articleId=1149789898103808674, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 杂质 | 浓度水平 | 加标量 /% | 检出量 /% | 回收率 /% | RSD/% |
| L-APEH | 低 | 0.0843 | 0.0735 | 87.3 | 1.6 |
| 0.0835 | 0.0707 | 84.7 |
| 0.0844 | 0.0731 | 86.6 |
| 中 | 0.1059 | 0.0900 | 85.0 | 0.9 |
| 0.1061 | 0.0891 | 84.0 |
| 0.1030 | 0.0881 | 85.5 |
| 高 | 0.1229 | 0.1029 | 83.8 | 0.9 |
| 0.1280 | 0.1092 | 85.3 |
| 0.1240 | 0.1045 | 84.3 |
| L-AOEH | 低 | 0.0796 | 0.072 | 91.1 | 0.2 |
| 0.0788 | 0.072 | 90.9 |
| 0.0797 | 0.073 | 91.4 |
| 中 | 0.1000 | 0.090 | 90.0 | 2.6 |
| 0.1002 | 0.090 | 89.6 |
| 0.0973 | 0.091 | 93.9 |
| 高 | 0.1160 | 0.103 | 89.1 | 0.8 |
| 0.1208 | 0.109 | 90.6 |
| 0.1171 | 0.105 | 89.7 |
), ArticleFig(id=1154353365535413130, tenantId=1146029695717560320, journalId=1146119944283992078, articleId=1149789898103808674, language=CN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 杂质 | 浓度水平 | 加标量 /% | 检出量 /% | 回收率 /% | RSD/% |
| L-APEH | 低 | 0.0843 | 0.0735 | 87.3 | 1.6 |
| 0.0835 | 0.0707 | 84.7 |
| 0.0844 | 0.0731 | 86.6 |
| 中 | 0.1059 | 0.0900 | 85.0 | 0.9 |
| 0.1061 | 0.0891 | 84.0 |
| 0.1030 | 0.0881 | 85.5 |
| 高 | 0.1229 | 0.1029 | 83.8 | 0.9 |
| 0.1280 | 0.1092 | 85.3 |
| 0.1240 | 0.1045 | 84.3 |
| L-AOEH | 低 | 0.0796 | 0.072 | 91.1 | 0.2 |
| 0.0788 | 0.072 | 90.9 |
| 0.0797 | 0.073 | 91.4 |
| 中 | 0.1000 | 0.090 | 90.0 | 2.6 |
| 0.1002 | 0.090 | 89.6 |
| 0.0973 | 0.091 | 93.9 |
| 高 | 0.1160 | 0.103 | 89.1 | 0.8 |
| 0.1208 | 0.109 | 90.6 |
| 0.1171 | 0.105 | 89.7 |
), ArticleFig(id=1154353365598327693, tenantId=1146029695717560320, journalId=1146119944283992078, articleId=1149789898103808674, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 样品 | L-AMEH | L-AEEH | L-APEH | L-AOEH |
| 1 | 0.074% | 0.009% | 0.004% | ND |
| 2 | 0.033% | 0.008% | 0.004% | ND |
| 3 | 0.034% | 0.007% | 0.004% | ND |
| 4 | 0.039% | ND | 0.007% | 0.031% |
| 5 | 0.021% | ND | 0.001% | 0.004% |
), ArticleFig(id=1154353365652853648, tenantId=1146029695717560320, journalId=1146119944283992078, articleId=1149789898103808674, language=CN, label=表 3, caption=
样品中 4 种杂质的检测注: ND 表示未检出。, figureFileSmall=null, figureFileBig=null, tableContent=
| 样品 | L-AMEH | L-AEEH | L-APEH | L-AOEH |
| 1 | 0.074% | 0.009% | 0.004% | ND |
| 2 | 0.033% | 0.008% | 0.004% | ND |
| 3 | 0.034% | 0.007% | 0.004% | ND |
| 4 | 0.039% | ND | 0.007% | 0.031% |
| 5 | 0.021% | ND | 0.001% | 0.004% |
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