简介：选择可疑为急性胰腺炎患者50例,其中临床确诊有39例,分别用比浊法、碘-淀粉酶比色法进行血清脂肪酶、淀粉酶二种方法联合检测,结果39例患者中,脂肪酶和淀粉酶阳性率分别为92.3%、69.2%。观察39例确诊病例,8h内抽血检测脂肪酶、淀粉酶,二者都升高;12-24h内,血清淀粉酶达高峰,是参考值的3倍,脂肪酶继续升高;48h后,淀粉酶开始下降,脂肪酶达高峰,大于参考值3倍以上;第3天,淀粉酶降至正常,脂肪酶仍高于正常值上限;第6、8天,淀粉酶雏持正常水平,脂肪酶开始下降,但仍高于正常值上限;第10天后,脂肪酶降至正常。揭示急性胰腺炎时,血清淀粉酶增高时间较短,易漏诊,脂肪酶升高可持续10天,对诊断急性胰腺炎有较高特异性,将脂肪酶、淀粉酶二者联合检测有助于急性胰腺炎的诊断和预后的判断。

简介：Ca-dopedBaMgAl10O17:Eu2+,Mn2+(BAM)bluephosphorsweresynthesizedbyfluxassistedsolid-statereactionmethodusingCaF2andBaF2asco-flux.GooddispersityandparticlesizehomogenizationofhexagonalpurephaseBAMwereobtainedbysinteringat1400℃.TheeffectsoftheCa2+ionscontentonthestructure,morphologyandphotoluminescencepropertiesofthephosphorswerestudied.TheresultsindicatedthattheincorporationofCacoulddecreasethelatticeconstant,improvethehomogeneityanddispersityandenhancethephotoluminescence(PL)intensityofthephosphoreffectively.TheoptimumBa0.86Ca0.04Mg0.97Al10O17:0.1Eu2+,0.03Mn2+PLintensitywasenhancedforabout30%andrelativebrightnesswasimprovedabout4%.Furthermore,thesynthesizedBAMandcommercialBAMphosphorswereannealedfor30minat600oCinair.TheCa-dopedphosphorshadstrongeremissionintensity,higherbrightnessandbetterchromaticitystabilitythanthatofthecommercialphosphor.TheseresultsindicatedthatCa-dopedbluephosphorshadgoodpotentialapplicationsinthecommercialtricolorfluorescentlampsaswellasinotherdisplayandlamps.