请使用支持JavaScript的浏览器! simplex tests和试剂盒的区别_蚂蚁淘商城
simplex tests和试剂盒的区别
2018-02-05
问题描述:

*请输入10-500个字符
已帮助
0人
WYZZWB2011
  用户
simplex tests是一种试剂瓶,分为广口瓶和细口瓶,和试剂盒是不一样的。一、广口瓶。广口瓶是用于盛放固体试剂的玻璃容器,有透明和棕色两种,棕色瓶用于盛放需避光保存的试剂(例如硝酸银等大部分硝酸盐)。广口瓶一般用于存放试剂,瓶口内部磨砂,用于与瓶塞配合使用。取用试剂时,瓶塞要倒放在桌上,用后将塞塞紧,必要时密封。由于瓶口内侧磨砂,一般跟玻璃磨砂塞配套,因而玻璃塞的广口瓶不能盛放强碱性试剂。如果盛放碱性试剂,要改用橡皮塞,因为强碱与玻璃中的二氧化硅反应,生成硅酸盐,使口与塞粘连。二、细口瓶。一种用于存放液体试剂的玻璃容器,细口方便液体倾倒,并且能够避免试剂挥发,因此口比较小。有透明和棕色两种,棕色瓶用于盛放需避光保存的试剂。取用试剂时,瓶塞要倒放在桌上,用后将塞塞紧,必要时密封。由于瓶口内侧磨砂,一般跟玻璃磨砂塞配套,因而不能盛放强碱性试剂。如果盛放碱性试剂,要改用橡皮塞。
已帮助
0人
卧虎藏龙chips
  用户
TheprevalenceofpositiveskinteststoAnisakissimplexishighcomparedwiththelowincidenceoftruegastroallergicAnisakiasis.ThereislittleinformationabouttheprevalenceofpositiveconjunctivaltestsinA.simplex-sensitizedindividuals.ThisstudyassessesthepredictivevalueofconjunctivalprovocationtestintwogroupsofA.simplex-sensitizedsubjectsandnegativecontrols.GroupAconsistedof28individualswithaclinicalhistorystronglysuggestiveofgastroallergicanisakiasisandgroupB,of32individualswithoutsuchhistory.The60individualshadpositiveskintestsandinvitrospecificIgEdeterminationstoA.simplex.SkinandconjunctivalprovocationtestswereperformedwithanextractofA.simplexataconcentrationof1mgoflyophilizedmaterialperml.Conjunctivalprovocationtestswerepositivein21/28(75%)ofgroupApatientsandin10/32(31%)ofgroupBpatients.Thisdifferencewasstatisticallysignificant(p<0.015);theoddsratiowas6.6(2.11-20.5;p<0.05).Thediagnosticvalueoftheconjunctivalprovocationtestwasexpressedbythefollowingstatisticalindicators:sensitivity75%(55.8%-88.6%),falsepositive25%(11.4%-45.2%),specificity68.7%(49.9%-83.2%),falsenegative31.2%(16.7%-50%),positivepredictivevalue67.7%(48.5%-82.7%),negativepredictivevalue75.9%(56.1%-89%),Yudenindex1.43.Therewerenostatisticaldifferencesrelatedtoage,sex,oratopicstatusinpatientswithapositiveornegativeconjunctivalchallenge.TotalandspecificIgElevelstoA.simplexweresignificantlygreater(p<0.05andp<0.001,respectively)inthegroupofpatientswithapositivechallenge.TheresultsdemonstratethatpositiveconjunctivalprovocationtestsandhighspecificandtotalIgElevelsaremoreprevalentinpatientswithaclinicalhistorystronglysuggestiveofgastroallergicanisakiasis.Despitethesignificantdifferencesobtainedinbothgroups,thistesthasalimiteddiagnosticvaluetoclinicallydiscriminatepatientswithahistoryconsistentwithgastroallergicanisakiasis.展开
相关文章