固相萃取与高效液相色谱联用测定宠物食品中三聚氰胺
...方差因子RWP,以及拟合优值S的数值作判据,其中RP=|Yi(obs)-Yi(calc)|Yi(obs)(5) RWP=Wi[Yi(obs)-Yi(calc)]2Wi[Yi(obs)]21/2(6) S=Wi[Yi(obs)-Yi(calc)]2/(N-P)(7) 式中Yi(obs)为在2θi位置观察的衍射强度;Yi(calc)为在2...
药品天地;专业药学;实验技术;色谱技术;色谱分析实例ChemokinesinChildrenWithHeterozygousFamiliarHypercholesterolemia
...indingssupportaroleofinflammationalsointheearlystagesofatherogenesispossiblyinvolvingmonocyte-derivedRANTESasanimportantmediator.HereinweshowthatchildrenwithheterozygousfamilialhypercholesterolemiaarecharacterizedbyenhancedexpressionofRANTESbutnotoftheothermeasuredchemokinesinperipheralbloodmononucl...
医源资料库;在线期刊;动脉硬化血栓血管生物学杂志;2006年第26卷第1期原子吸收光谱法测定水中锰的不确定度评定
...ultsTheuncertaintyoftheresultofMninwatertestedbyatomicabsorptionspectrometryis0.011mg/L.ConclusionThemethodfordeterminingMnfromwaterbyatomicabsorptionspectrometryisclearandadequateandwithoutrepeatedprocedureandomission. Keywords:Uncertainty;Atomicabsorptionspectrometry;Manganese 不确定...
医源资料库;在线期刊;中国热带医学杂志;2005年第5卷第3期正交设计-重复试验法优选当归芍药散的提取工艺
...a.芍药苷表2 正交试验L9(34)计算表NO.提取率/‰结果/%yikYi13.9343.3757.30924.5074.6099.11634.5764.1338.70944.4524.3778.82953.6503.9777.62763.9003.7117.61174.1884.1618.34982.4162.5935.00994.7674.6729.439表3 方差分析表方差来源离差平方和自由度均方和F显著性...
药品天地;专业药学;中药大全;中药制剂RhokinaseregulatesrenalbloodflowbymodulatingeNOSactivityinischemia-reperfusionoftheratkidney
...ioncharacterizedbyareducedendothelium-dependentvasodilatationandsubsequentlyimpairedbloodflow.Inthisstudy,weinvestigatedtheroleofRhokinaseinendothelialnitricoxidesynthase(eNOS)-mediatedregulationofrenalbloodflowandvasomotortoneinrenalI/R.MaleWistarratsweresubjectedto60-minbilateralclampingoftherenal...
医源资料库;在线期刊;美国生理学杂志;2006年第289卷第9期基于最小二乘支持向量机的色谱指纹谱预测银杏叶总抗氧化活性
...中S是平滑信号F与原始信号Y相似程度的量度。S=∑ivi(yi-fi)2(2)R是平滑信号F粗糙程度的量度。R=∑i(Δ2fi)2(3)式(1)中λ是Q式的权重,λ(一般1×105~1×108)越大F越平滑。式(2)中vi是赋予S的先验权重,由不对称参数p(一般...
药品天地;专业药学;实验技术;色谱技术;色谱论文射频消融治疗悬雍垂腭咽成形术后无效的阻塞性睡眠呼吸暂停低通气综合征
射频消融治疗悬雍垂腭咽成形术后无效的阻塞性睡眠呼吸暂停低通气综合征(pdf) [摘要]目的探讨等离子低温射频消融(temperature-controlledradiofrequencyablation,RFA)治疗悬雍垂腭咽成形术(uvulopalatopharyngoplasty,UPPP)术后无效的阻...
医源资料库;在线期刊;中华现代中西医杂志;2006年第4卷第7期MultipleorganinfectionandthepathogenesisofSARS
...bledthatseeninadultrespiratorydistresssyndrome,butwithapaucityofinflammatoryinfiltrate.InsituhybridizationdemonstratedSARSviralsequencesinthecytoplasmofalargenumberofintactanddegeneratingepithelialcellsofthelungsaswellasinthescantyinfiltratinglymphocytesandclusteredmacrophages(Fig.1,CandD).Pulmonary...
医源资料库;在线期刊;实验医学杂志;2005年第202卷第3期IdentificationofImmunodominantEpitopesontheMembraneProteinoftheSevereAcuteRespiratorySyndrome-AssociatedCoronavirus
...oteinofmousehepatitisvirus,amousecoronavirus,couldneutralizevirusinfectivityinvitro(5,10)andprotectanimalsagainstlethalviruschallengeinvivo(10).ThesefeaturesmaketheMproteinanattractivetargetfordevelopingdiagnostictestsandsubunitvaccines(7,8,11,18,24,26,35,37,39),althoughitsantigenicdeterminantsremai...
医源资料库;在线期刊;微生物临床杂志;2005年第43卷第8期火焰原子吸收光谱法测定工作场所空气中锰的不确定度评定
...trolofdeterminationprocess.MethodsWeusethemethodaboutevaluationofuncertaintyinmeasurementtoanalyzethesourceofuncertaintyindeterminationprocessandthentodistinguishthekeyfactorsofuncertainty.ResultsTheuncertaintyfromsampling,standardstocksolutiondiluted,standardcurveandrecoveriesarethekeyfactors.Con...
医源资料库;在线期刊;中华医学实践杂志;2008年第7卷第1期