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,而其他藥物未發(fā)現(xiàn)有吸附損失[14]。 溶液pH的影響一般來(lái)說(shuō),pH影響藥物的離解程度,從而影響藥物的脂溶性,影響吸附效果。又如PVC對(duì)勞拉西泮的吸附,在24 h內(nèi),4℃時(shí)其濃度下降8%~9%, 24℃時(shí)其濃度下降l7%, 在37℃時(shí)其濃度下降了27%~29%。3 討論P(yáng)VC材料中添加了使其穩(wěn)定和軟化的無(wú)法降解的有毒物質(zhì)DEHP,對(duì)環(huán)境和人類健康造成了不良影響,而PVC本身作為輸液器就存在一定在局限性。PVC輸液器對(duì)藥物的吸附作用可對(duì)有些藥物的實(shí)驗(yàn)研究和臨床應(yīng)用造成很大影響,因有效濃度下降而被認(rèn)為效差或無(wú)效。Arcy, Drugs lntell. Clin. Pharrn., 1983, 17 726731.5 L. Ilium and H. Bundgaard, Int. J. Pharm., 1982, 10 339351.6 . Kowaluk, . Roberts, . Blackburn and . Polack, Am. J. Hosp. Pharm., 38 (1981) 13081314.7 奚廷斐, 王春仁., The Safety Assessment of Medical Devices Manufactured from Di(2ethylhexy1) phthalate Plasticized Polyvinyl Chloride. 2005,中國(guó)醫(yī)療器械信息 11(2): 2730.8 US Food and Drug Administration, 2002: Safety assessment of di(2ethylhexy1) phthalate (DEHP) released from PVC medical devices.9 Sarsfield BA,Maloy JT.ShortteriI1 chronoamperometric screening of chlorpromazinepackage interactions[J].J Pharm Sci,1998.87 (9):113010 Xu QA,Trissel LA,Martinez JF Rapid loss of fentanyl citrate admixed with fluorouracil in polyvinyl chloride containers[J] .Ann Pharmacother.1997.31(3):297.11 Sattler A, Jage J, Kramer I. Physicochemical stability of infusion solutions for epidural administration containing fentanyl and bupivacaine or lidocaine[J] Pharmazie,1998,53(6):38612 Shibata N, Iknno Y, Tsubakimoto Y, et a1.Absorption and pharmacokinetics of cyclosvorin A in relation to mode of infusion in bone marrow transplant patients L J J.Bone Marrow Transplant,2000,25(6):63313 黃義昆. 聚氯乙烯輸液器對(duì)藥物的吸附. 中國(guó)醫(yī)院藥學(xué)雜志,2002 22(10): 618.14 Beitz C, BertschT, HannakD, et a1.Compatibilityof plasticswith cytotoxic drug solutionsparison of lyolyethylene with other containermaterials[J],Int J Phan11,1999,185(1):11321.15 董振海, 許紅霞, 董華軍. 聚氯乙烯輸液器及玻璃制品對(duì)藥物的吸附作用.中國(guó)醫(yī)刊,2004, 39(4): 48.16 解斌, :人民衛(wèi)生出版杜,1998,385.17 馬占穎,郭輝,夏文斌.PVC袋與玻璃瓶吸附硝酸甘油試驗(yàn)[J].西北藥學(xué)雜志,1999,14(1):18.18 周密妹,李性天,曲春華,等.聚氯乙烯軟袋對(duì)腹膜