灵敏度检出限精密度准确度的概念区别.docVIP

鍾鏗僅 IUPAC芢熱峈ㄩ煦昴陓瘍呴煦昴昜襯僅曹趙腔厒僅﹝ l杻涽襯僅ㄗ Characteristic Concentrationㄘ l峈掩煦昴啋匼莉汜 0.0044 (1 % )柲嫖僅垀剒襯僅﹝祥肮腔痀?ㄛ杻涽襯僅祥珨 欴﹝ 褫偌狟蹈鼠宒數呾ㄩ Char. Conc. = (梓欴襯僅 * 0.0044) / ?歙柲嫖僅 ㄗ籵都婓苺淏?盄盄俶毓峓囀聆ㄛ?0.2ABSㄘ l杻涽窐講ㄗ Characteristic Mass ㄘ l婓坒蘋簪煦昴笢ㄛ偌瑕詢數呾ㄛ掩煦昴啋匼莉汜0.0044柲嫖僅垀剒窐講ㄗ眕?親峈等弇 ㄘ﹝褫偌狟鼠宒數呾ㄩlChar. Mass = (梓欴襯僅 ℅0.0044℅ 輛欴极儅) / 梓欴柲嫖僅 杻涽窐講 (1) 隅砱: 鍾鏗僅 絞莉汜1% 柲彶奀ㄛ煦昴昜腔襯僅 潰堤癹(Detection Limit) l眈勤衾99%腔离陓僅啋匼ㄛ婓?珘笢褫掩潰堤腔郔腴襯僅﹝撿极岆勤諾啞麼諉輪諾啞腔?珘輛俴嗣棒聆講ㄛ3捷腔梓袧?船撈岆潰堤癹﹝涴岆痀?垀夔潰堤腔詢衾掖劓婑汒腔郔腴癹﹝ l潰堤癹ㄗDetection Limitㄘ睿聆講狟癹ㄗDetermination Limitㄘㄩ荎恅潰迡飲岆D.L..聆隅狟癹岆硌衄珨隅袧?僅猁?ㄛ褫輛俴隅講聆隅腔煦昴啋匼腔郔苤襯僅ㄗ麼窐講ㄘ﹝奧潰堤癹湍衄褫隅俶潰堤腔郔苤襯僅ㄗ麼窐講ㄘ腔漪砱 儕躇僅 l儕躇僅ㄩ岆硌嗣棒聆隅賦彆腔笭葩俶 l儕躇僅都眕梓袧?船ㄗSDㄘ睿眈勤梓袧?船ㄗRSDㄘ懂講僅ㄩ l梓袧?船ㄗStandard Deviation ㄘ llll?笢ㄩ n = 聆講棒杅,Abs=柲嫖僅 l蚕衾襯僅祥肮ㄛ載嗣華蚚眈勤梓袧?船懂桶尨賦彆腔儕僅ㄛ珩備曹祑炵杅ㄛ撈RSD l %RSD=梓袧?船ㄗSDㄘ℅100ㄔˉ?歙柲嫖僅 l奧勤衾梓袧?船涴跺衙癩ㄛ婓桶尨勤植痀?笢垀腔賦彆腔离陓僅源醱岆準都蚚蚚腔﹝瞰?ㄩ?彆議?腔煦昴賦彆岆5ppmㄛ數呾堤腔SD岆0.1ppmㄛ饒繫勤衾95ㄔ腔离陓僅ㄛㄗ撈2sㄘ賦彆茼蜆岆ㄩ5.0㊣0.2ppmㄛ撈4.8~5.2ppm.秪森峈賸枑鼎載儕?腔毓峓ㄛ憩斛剕蜊囡儕躇僅﹝ 袧?僅 l袧?僅ㄩ岆硌聆隅硉睿淩硉腔船梗 l疑腔儕僅祥脹衾袧?僅疑ㄛ奧袧?僅疑斛剕衄疑腔儕僅 l瓚剿袧?僅疑輓腔?笱妗桄ㄩ llㄗ1ㄘ梓欴勤桽妗桄 lㄗ2ㄘ源楊勤桽妗桄 lㄗ3ㄘ梓袧隙彶妗桄ㄩ婓欴?腔?揭燴?ㄛ珂婓彸欴笢樓?眒眭講腔梓袧煦昴啋匼ㄗ?袨怓珩茼迵彸欴笢渾煦昴腔啋匼眈輪ㄘ﹝婓輛俴俇淕煦昴徹最綴ㄛ葩瞄隙彶啃煦杅﹝ㄛ跦擂隙彶薹諉輪100ㄔ腔最僅ㄛ潰桄源楊腔褫蕞俶﹝ l婓埻赽柲彶煦昴楊輛俴彸欴煦昴綴ㄛ妗桄賦彆腔桶尨茼婦嬤ㄩ襯僅ㄗ麼窐講ㄘ杅擂ㄛ儕躇僅睿昫船毓峓?砐囀?﹝ l妗桄賦彆茼桶尨峈ㄩ l?歙硉㊣3sㄛ99ㄔ腔离陓僅 荌砒杻涽窐講睿潰堤癹腔秪匼 煦昴昜 疏酗 嫖繚笢腔酗僅 狫瑜遵僅 嫖埭腔濬倰 價极 (婦嬤價极蜊輛撙) 掖劓苺淏 潰聆?腔濬倰 源楊統杅 荌砒潰堤癹腔秪匼 埻赽趙厒薹腔疏雄 坒蘋奪族腔楷扞 湮?﹜嗉俶?极睿煦昴昜腔柲彶 嫖埭腔婑秞 潰聆?腔婑秞 嫖繚炵苀祥補噱 杻涽窐講睿潰堤癹 杻涽窐講 l婓腴柲彶(0.100-0.200 abs)奀輛俴聆講 l樵隅郔槽腔馱釬毓峓 (20-200x) l痀?俶夔腔潰脤 l杅硉埣腴ㄛ桶隴ㄩ l鍾鏗僅埣疑 l埣疑腔儕?僅 l載疑腔袧?僅 l腴腔潰堤癹ψ 潰堤癹 q聆講軞腔婑秞 q郔苤腔褫潰堤講 MDQ= 10x DL q甜祥悵痐疑腔儕僅 q迵杻涽窐講眈掀ㄛ載嗣?樵迵價极睿煦昴源楊