工程塑料应用
工程塑料應用
공정소료응용
ENGINEERING PLASTICS APPLICATION
2013年
11期
92-95
,共4页
邻苯二甲酸二(2-乙基己基)酯%PVC医疗器械%薄层色谱-紫外分光光度法
鄰苯二甲痠二(2-乙基己基)酯%PVC醫療器械%薄層色譜-紫外分光光度法
린분이갑산이(2-을기기기)지%PVC의료기계%박층색보-자외분광광도법
di(2-ethylhexyl)phthalate(DEHP)%PVC medical device%TLC-UV spectrophotometry
通过薄层色谱法分离,紫外分光光度法检测,建立了聚氯乙烯(PVC)医疗器械中邻苯二甲酸二(2-乙基己基)酯(DEHP)的快速测定方法。采用乙醚索氏提取PVC医疗器械中的DEHP,以硅胶GF254为固定相,甲苯为展开剂对DEHP进行分离纯化,在波长为225 nm下用紫外分光光度法测定。结果表明,DEHP在浓度2.36~47.20μg/mL范围内线性良好,相关系数为0.9999;相对标准偏差为4.84%;样品的加标回收率为99.05%。该方法具有良好的线性、精密度及回收率,可应用于多种PVC医疗器械中DEHP含量的测定。
通過薄層色譜法分離,紫外分光光度法檢測,建立瞭聚氯乙烯(PVC)醫療器械中鄰苯二甲痠二(2-乙基己基)酯(DEHP)的快速測定方法。採用乙醚索氏提取PVC醫療器械中的DEHP,以硅膠GF254為固定相,甲苯為展開劑對DEHP進行分離純化,在波長為225 nm下用紫外分光光度法測定。結果錶明,DEHP在濃度2.36~47.20μg/mL範圍內線性良好,相關繫數為0.9999;相對標準偏差為4.84%;樣品的加標迴收率為99.05%。該方法具有良好的線性、精密度及迴收率,可應用于多種PVC醫療器械中DEHP含量的測定。
통과박층색보법분리,자외분광광도법검측,건립료취록을희(PVC)의료기계중린분이갑산이(2-을기기기)지(DEHP)적쾌속측정방법。채용을미색씨제취PVC의료기계중적DEHP,이규효GF254위고정상,갑분위전개제대DEHP진행분리순화,재파장위225 nm하용자외분광광도법측정。결과표명,DEHP재농도2.36~47.20μg/mL범위내선성량호,상관계수위0.9999;상대표준편차위4.84%;양품적가표회수솔위99.05%。해방법구유량호적선성、정밀도급회수솔,가응용우다충PVC의료기계중DEHP함량적측정。
A fast method for determination of Di(2-ethylhexyl)phthalate(DEHP) in PVC medical devices was established using thin layer chromatography(TLC)-UV spectrophotometry. DEHP from PVC medical devices was extracted through ether Soxhlet extraction and TLC puriifcation was accomplished on silica gel GF254 plate by using the developing agent of toluene,then DEHP was determined by UV Spectrophotometry at 225 nm. The results show that the linear range for DEHP is 2.36~47.20μg/mL, and the linear correlation coefifcient is 0.999 9. The relative standard deviation of the method is 4.84%. The average standard addition recovery is 99.05%. The linear range,precision and recovery of this method can satisfy the request of DEHP determination in PVC medical devices.