Article(id=1153986791767007803, tenantId=1146029695717560320, journalId=1149652044408987649, issueId=1153986777279877909, articleNumber=null, orderNo=null, doi=10.19812/j.cnki.jfsq11-5956/ts.20241022003, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1729526400000, receivedDateStr=2024-10-22, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1753061491194, onlineDateStr=2025-07-21, pubDate=1736870400000, pubDateStr=2025-01-15, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1753061491194, onlineIssueDateStr=2025-07-21, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1753061491194, creator=13701087609, updateTime=1753061491194, updator=13701087609, issue=Issue{id=1153986777279877909, tenantId=1146029695717560320, journalId=1149652044408987649, year='2025', volume='16', issue='1', pageStart='1', pageEnd='320', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=0, createTime=1753061487741, creator=13701087609, updateTime=1757901302572, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1174286432060453412, tenantId=1146029695717560320, journalId=1149652044408987649, issueId=1153986777279877909, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1174286432060453413, tenantId=1146029695717560320, journalId=1149652044408987649, issueId=1153986777279877909, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=53, endPage=58, ext={EN=ArticleExt(id=1153986792631034448, articleId=1153986791767007803, tenantId=1146029695717560320, journalId=1149652044408987649, language=EN, title=Determination of the migration of isosorbide in isosorbide modified polyethylene terephthalate products by gas chromatography, columnId=1153986581653349021, journalTitle=Journal of Food Safety & Quality, columnName=Special Topic: Application of Modern Analysis Instrument in Food Detection, runingTitle=null, highlight=null, articleAbstract=
Objective To establish a method for the determination of migration of isosorbide in isosorbide modified polyethylene terephthalate (PET) products by gas chromatography-flame ionization detector (GC-FID). Methods The effects of different chromatographic conditions on the separation of isosorbide were investigated. HP-5 was selected as the separation column and 260 ℃ was selected as the injection port temperature. The effects of different pretreatment methods on the extraction of isosorbide from food simulants were investigated. The olive oil food simulant was extracted with methanol, purified with n-hexane and filtered before analyzed. The 95% ethanol and isooctane simulants were directly analyzed by the machine after filtered. Other food simulants were diluted with methanol and then directly analyzed by the machine. The external standard method was used for quantification. Results Isosorbide had a good linear relationship in the range of 2.5-40.0 mg/L (aqueous food simulants), 0.6-10.0 mg/L (substitute simulants) and 1.5-25.0 mg/kg (fatty food simulants), and the correlation coefficient was above 0.995. The limit of detection of this method for the migration of isosorbide was 0.8 mg/kg (aqueous food simulants), 0.2 mg/kg (substitute simulants) and 0.5 mg/kg (fatty food simulants). The limit of quantification was 2.5 mg/kg (aqueous food simulants), 0.6 mg/kg (substitute simulants) and 1.5 mg/kg (fatty food simulants). The spiked recoveries were 92.0%-112.3%, and the relative standard deviation was 0.2%-4.3% (n=6). Conclusions This method has good linearity, high precision, sensitivity and accuracy, and can meet the detection requirements of isosorbide migration in modified PET products.
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目的 建立气相色谱-氢火焰离子化检测器法(gas chromatography-flame ionization detector, GC-FID)测定异山梨醇改性聚对苯二甲酸乙二醇酯(polyethylene terephthalate, PET)制品中异山梨醇迁移量的方法。方法 考察不同色谱条件对目标物异山梨醇分离度的影响, 选择HP-5作为分离柱, 260 ℃为进样口温度; 考察不同前处理方法对浸泡液中异山梨醇提取的效果, 橄榄油浸泡液经甲醇提取、正己烷净化并过滤后上机分析, 95%乙醇和异辛烷浸泡液经过滤后直接上机测定, 其他食品模拟物浸泡液用甲醇稀释后直接上机分析; 外标法定量。结果 异山梨醇在2.5~40.0 mg/L(水性模拟物)、0.6~10.0 mg/L(油脂替代溶剂模拟物)和1.5~25.0 mg/kg(油脂模拟物)浓度范围内具有良好的线性关系, 相关系数均大于0.995, 该方法对异山梨醇迁移量的检出限为0.8 mg/kg(水性模拟物)、0.2 mg/kg(油脂替代溶剂模拟物)和0.5 mg/kg(油脂模拟物), 定量限为2.5 mg/kg(水性模拟物)、0.6 mg/kg(油脂替代溶剂模拟物)和1.5 mg/kg(油脂模拟物), 加标回收率为92.0%~112.3%, 相对标准偏差为0.2%~4.3% (n=6)。结论 该方法线性关系良好, 精密度、灵敏度和准确度高, 能够满足改性PET制品中异山梨醇迁移量的检测需求。
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吴泽春(1995—), 男, 工程师, 主要研究方向为食品接触材料污染物检测。E-mail: wuzc@iqtc-fcm.com
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吴泽春(1995—), 男, 工程师, 主要研究方向为食品接触材料污染物检测。E-mail: wuzc@iqtc-fcm.com
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Gas chromatograms of isosorbide on different chromatographic columns 注: A. HP-5柱; B. DB-624柱; C. HP-INNowax柱。
, figureFileSmall=6pnWgwQP0w2GeyojGMsj0A==, figureFileBig=B9ETGbRBPyUZZTWMEd43YA==, tableContent=null), ArticleFig(id=1174369803365135091, tenantId=1146029695717560320, journalId=1149652044408987649, articleId=1153986791767007803, language=CN, label=图1, caption=
不同色谱柱上异山梨醇的气相色谱图, figureFileSmall=6pnWgwQP0w2GeyojGMsj0A==, figureFileBig=B9ETGbRBPyUZZTWMEd43YA==, tableContent=null), ArticleFig(id=1174369803423855348, tenantId=1146029695717560320, journalId=1149652044408987649, articleId=1153986791767007803, language=EN, label=Fig.2, caption=
Gas chromatograms of isosorbide before and after purification of the methanol extract of olive oil simulant using different solvents, figureFileSmall=zlsuARGQIP5AXuURu+XyDw==, figureFileBig=VLnQHIjXkT2oorR9cxmtPw==, tableContent=null), ArticleFig(id=1174369803490964213, tenantId=1146029695717560320, journalId=1149652044408987649, articleId=1153986791767007803, language=CN, label=图2, caption=
使用不同溶剂对橄榄油模拟物甲醇提取液净化前后异山梨醇的气相色谱图 注: A. 净化前; B. 异辛烷净化后; C. 正己烷净化后。
, figureFileSmall=zlsuARGQIP5AXuURu+XyDw==, figureFileBig=VLnQHIjXkT2oorR9cxmtPw==, tableContent=null), ArticleFig(id=1174369803553878774, tenantId=1146029695717560320, journalId=1149652044408987649, articleId=1153986791767007803, language=EN, label=Fig.3, caption=
Gas chromatograms of isosorbide after different purification times of the methanol extract of olive oil simulant with n-hexane, figureFileSmall=Txw5ATYWHg1SIcG7VJnyXw==, figureFileBig=r1cnwHzvK8aM6pAfSWFEKA==, tableContent=null), ArticleFig(id=1174369803625181943, tenantId=1146029695717560320, journalId=1149652044408987649, articleId=1153986791767007803, language=CN, label=图3, caption=
正己烷对橄榄油模拟物甲醇提取液不同净化次数的异山梨醇的气相色谱图 注: A. 1次净化; B. 2次净化; C. 3次净化。
, figureFileSmall=Txw5ATYWHg1SIcG7VJnyXw==, figureFileBig=r1cnwHzvK8aM6pAfSWFEKA==, tableContent=null), ArticleFig(id=1174369803709068024, tenantId=1146029695717560320, journalId=1149652044408987649, articleId=1153986791767007803, language=EN, label=Fig.4, caption=
Variation of instrument response value of isosorbide at different inlet temperatures, figureFileSmall=0jtridNrjMZhf6hAOU2/sw==, figureFileBig=FHUHT6m6AXSGReBBrB0PiQ==, tableContent=null), ArticleFig(id=1174369803763593977, tenantId=1146029695717560320, journalId=1149652044408987649, articleId=1153986791767007803, language=CN, label=图4, caption=
不同进样口温度下异山梨醇的仪器响应值变化, figureFileSmall=0jtridNrjMZhf6hAOU2/sw==, figureFileBig=FHUHT6m6AXSGReBBrB0PiQ==, tableContent=null), ArticleFig(id=1174369803822314234, tenantId=1146029695717560320, journalId=1149652044408987649, articleId=1153986791767007803, language=EN, label=Fig.5, caption=
Gas chromatogram of real sample 6# in 50% ethanol, figureFileSmall=7C/UDNQav+1I4chtc4LNKw==, figureFileBig=sFx7H/qckNkWtnn/Frn92w==, tableContent=null), ArticleFig(id=1174369803885228795, tenantId=1146029695717560320, journalId=1149652044408987649, articleId=1153986791767007803, language=CN, label=图5, caption=
实际样品6#在50%乙醇中的气相色谱图, figureFileSmall=7C/UDNQav+1I4chtc4LNKw==, figureFileBig=sFx7H/qckNkWtnn/Frn92w==, tableContent=null), ArticleFig(id=1174369804082361084, tenantId=1146029695717560320, journalId=1149652044408987649, articleId=1153986791767007803, language=EN, label=Table 1, caption=
Extraction phenomena and effects of different solvents on oil simulants
, figureFileSmall=null, figureFileBig=null, tableContent=
| 提取溶剂 | 水 | 乙腈 | 甲醇 | 丙酮 | 乙酸乙酯 |
| 试验现象 | 分层 | 分层 | 分层 | 互溶 | 互溶 |
| 提取效率 | 低 | 高 | 高 | / | / |
), ArticleFig(id=1174369804203995901, tenantId=1146029695717560320, journalId=1149652044408987649, articleId=1153986791767007803, language=CN, label=表1, caption=
不同溶剂对油脂模拟物的提取现象及效果
, figureFileSmall=null, figureFileBig=null, tableContent=
| 提取溶剂 | 水 | 乙腈 | 甲醇 | 丙酮 | 乙酸乙酯 |
| 试验现象 | 分层 | 分层 | 分层 | 互溶 | 互溶 |
| 提取效率 | 低 | 高 | 高 | / | / |
), ArticleFig(id=1174369804304659198, tenantId=1146029695717560320, journalId=1149652044408987649, articleId=1153986791767007803, language=EN, label=Table 2, caption=
Extraction phenomena and purification effects of different solvents on olive oil extract
, figureFileSmall=null, figureFileBig=null, tableContent=
| 提取溶剂 | 丙酮 | 乙酸乙酯 | 异辛烷 | 正己烷 |
| 试验现象 | 互溶 | 互溶 | 分层 | 分层 |
| 净化效果 | / | / | 好 | 好 |
), ArticleFig(id=1174369804371768063, tenantId=1146029695717560320, journalId=1149652044408987649, articleId=1153986791767007803, language=CN, label=表2, caption=
不同溶剂对橄榄油提取液的提取现象及净化效果
, figureFileSmall=null, figureFileBig=null, tableContent=
| 提取溶剂 | 丙酮 | 乙酸乙酯 | 异辛烷 | 正己烷 |
| 试验现象 | 互溶 | 互溶 | 分层 | 分层 |
| 净化效果 | / | / | 好 | 好 |
), ArticleFig(id=1174369804447265536, tenantId=1146029695717560320, journalId=1149652044408987649, articleId=1153986791767007803, language=EN, label=Table 3, caption=
Regression equations, linear ranges and correlation coefficients
, figureFileSmall=null, figureFileBig=null, tableContent=
| 模拟物 | 回归方程 | 相关系数(r2) | 线性范围 | 检出限/(mg/kg) | 定量限/(mg/kg) |
| 4%乙酸 | Y=0.7301X-0.0918 | 0.9999 | 2.5~40.0 | 0.8 | 2.5 |
| 10%乙醇 | Y=0.7492X-0.1487 | 0.9999 | 2.5~40.0 | 0.8 | 2.5 |
| 50%乙醇 | Y=0.7257X-0.0032 | 0.9999 | 2.5~40.0 | 0.8 | 2.5 |
| 95%乙醇 | Y=3.9110X-0.8096 | 0.9998 | 0.6~10.0 | 0.2 | 0.6 |
| 异辛烷 | Y=2.7444X-2.4526 | 0.9993 | 0.6~10.0 | 0.2 | 0.6 |
| 橄榄油 | Y=5.0636X+1.3383 | 0.9994 | 1.5~25.0 | 0.5 | 1.5 |
), ArticleFig(id=1174369804585677569, tenantId=1146029695717560320, journalId=1149652044408987649, articleId=1153986791767007803, language=CN, label=表3, caption=
回归方程、线性范围及相关系数
, figureFileSmall=null, figureFileBig=null, tableContent=
| 模拟物 | 回归方程 | 相关系数(r2) | 线性范围 | 检出限/(mg/kg) | 定量限/(mg/kg) |
| 4%乙酸 | Y=0.7301X-0.0918 | 0.9999 | 2.5~40.0 | 0.8 | 2.5 |
| 10%乙醇 | Y=0.7492X-0.1487 | 0.9999 | 2.5~40.0 | 0.8 | 2.5 |
| 50%乙醇 | Y=0.7257X-0.0032 | 0.9999 | 2.5~40.0 | 0.8 | 2.5 |
| 95%乙醇 | Y=3.9110X-0.8096 | 0.9998 | 0.6~10.0 | 0.2 | 0.6 |
| 异辛烷 | Y=2.7444X-2.4526 | 0.9993 | 0.6~10.0 | 0.2 | 0.6 |
| 橄榄油 | Y=5.0636X+1.3383 | 0.9994 | 1.5~25.0 | 0.5 | 1.5 |
), ArticleFig(id=1174369804682146562, tenantId=1146029695717560320, journalId=1149652044408987649, articleId=1153986791767007803, language=EN, label=Table 4, caption=
Recoveries and RSDs of isosorbide in different simulants
, figureFileSmall=null, figureFileBig=null, tableContent=
| 模拟物 | 加标量/(mg/kg) | 回收率/% | RSDs/% |
| 4%乙酸 | 2.5 | 92.0~100.2 | 3.7 |
| 10.0 | 92.5~100.4 | 3.2 |
| 20.0 | 99.6~100.1 | 0.2 |
| 10%乙醇 | 2.5 | 93.8~103.3 | 4.3 |
| 10.0 | 96.6~100.1 | 1.1 |
| 20.0 | 99.8~100.2 | 1.0 |
| 50%乙醇 | 2.5 | 94.1~102.1 | 3.8 |
| 10.0 | 95.8~102.7 | 2.3 |
| 20.0 | 99.8~101.8 | 0.2 |
| 95%乙醇 | 2.5 | 92.0~108.7 | 2.7 |
| 10.0 | 99.8~100.2 | 0.4 |
| 20.0 | 99.7~100.4 | 0.4 |
| 异辛烷 | 2.5 | 94.0~104.3 | 1.9 |
| 10.0 | 99.6~101.3 | 0.9 |
| 20.0 | 99.6~100.2 | 0.8 |
| 橄榄油 | 2.5 | 102.1~112.3 | 3.2 |
| 10.0 | 97.8~102.4 | 1.3 |
| 20.0 | 104.8~106.3 | 0.2 |
), ArticleFig(id=1174369804799587075, tenantId=1146029695717560320, journalId=1149652044408987649, articleId=1153986791767007803, language=CN, label=表4, caption=
不同模拟物中异山梨醇的回收率及RSDs
, figureFileSmall=null, figureFileBig=null, tableContent=
| 模拟物 | 加标量/(mg/kg) | 回收率/% | RSDs/% |
| 4%乙酸 | 2.5 | 92.0~100.2 | 3.7 |
| 10.0 | 92.5~100.4 | 3.2 |
| 20.0 | 99.6~100.1 | 0.2 |
| 10%乙醇 | 2.5 | 93.8~103.3 | 4.3 |
| 10.0 | 96.6~100.1 | 1.1 |
| 20.0 | 99.8~100.2 | 1.0 |
| 50%乙醇 | 2.5 | 94.1~102.1 | 3.8 |
| 10.0 | 95.8~102.7 | 2.3 |
| 20.0 | 99.8~101.8 | 0.2 |
| 95%乙醇 | 2.5 | 92.0~108.7 | 2.7 |
| 10.0 | 99.8~100.2 | 0.4 |
| 20.0 | 99.7~100.4 | 0.4 |
| 异辛烷 | 2.5 | 94.0~104.3 | 1.9 |
| 10.0 | 99.6~101.3 | 0.9 |
| 20.0 | 99.6~100.2 | 0.8 |
| 橄榄油 | 2.5 | 102.1~112.3 | 3.2 |
| 10.0 | 97.8~102.4 | 1.3 |
| 20.0 | 104.8~106.3 | 0.2 |
), ArticleFig(id=1174369804879278852, tenantId=1146029695717560320, journalId=1149652044408987649, articleId=1153986791767007803, language=EN, label=Table 5, caption=
Test results of real samples
, figureFileSmall=null, figureFileBig=null, tableContent=
样品编号与 名称 | 测试条件 | 使用 场景 | 样品异山梨醇迁移量/(mg/kg) |
1#透明蓝色 壶身 | 3%乙酸, 40 ℃, 3 d | 可重复性使用 | 1st: N.D.; 2nd: N.D.; 3rd: N.D. |
| 2#塑料杯 | 10%乙醇, 40 ℃, 3 d | 可重复性使用 | 1st: N.D.; 2nd: N.D.; 3rd: N.D. |
| 3#塑料瓶 | 10%乙醇, 40 ℃, 10 d | 一次性使用 | N.D. |
| 4#黄色PET瓶 | 50%乙醇, 40 ℃, 10 d | 一次性使用 | N.D. |
| 5#吸管杯 | 50%乙醇, 40 ℃, 10 d | 一次性使用 | N.D. |
| 6#塑料瓶 | 50%乙醇, 60 ℃, 10 d | 一次性使用 | 2.8 |
| 7#黄色PET瓶 | 50%乙醇, 60 ℃, 10 d | 一次性使用 | N.D. |
| 8#PET瓶 | 10%乙醇, 60 ℃, 10 d | 一次性使用 | N.D. |
), ArticleFig(id=1174369804950582021, tenantId=1146029695717560320, journalId=1149652044408987649, articleId=1153986791767007803, language=CN, label=表5, caption=
实际样品检测结果
, figureFileSmall=null, figureFileBig=null, tableContent=
样品编号与 名称 | 测试条件 | 使用 场景 | 样品异山梨醇迁移量/(mg/kg) |
1#透明蓝色 壶身 | 3%乙酸, 40 ℃, 3 d | 可重复性使用 | 1st: N.D.; 2nd: N.D.; 3rd: N.D. |
| 2#塑料杯 | 10%乙醇, 40 ℃, 3 d | 可重复性使用 | 1st: N.D.; 2nd: N.D.; 3rd: N.D. |
| 3#塑料瓶 | 10%乙醇, 40 ℃, 10 d | 一次性使用 | N.D. |
| 4#黄色PET瓶 | 50%乙醇, 40 ℃, 10 d | 一次性使用 | N.D. |
| 5#吸管杯 | 50%乙醇, 40 ℃, 10 d | 一次性使用 | N.D. |
| 6#塑料瓶 | 50%乙醇, 60 ℃, 10 d | 一次性使用 | 2.8 |
| 7#黄色PET瓶 | 50%乙醇, 60 ℃, 10 d | 一次性使用 | N.D. |
| 8#PET瓶 | 10%乙醇, 60 ℃, 10 d | 一次性使用 | N.D. |
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