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(Ò») ׼ȷ¶È(accuracy)
׼ȷ¶ÈÊÇÖ¸Óø÷½·¨²â¶¨µÄ½á¹ûÓëÕæÊµÖµ»ò²Î¿¼Öµ½Ó½üµÄ³Ì¶È,ÓðٷֻØÊÕÂʱíʾ.

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»ØÊÕÊÔÑé ¿Õ°×+ÒÑÖªÁ¿AµÄ¶ÔÕÕÆ·(»ò±ê׼Ʒ)²â¶¨,²â¶¨ÖµÎªM
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1. º¬Á¿²â¶¨·½·¨µÄ׼ȷ¶È
Ô­ÁÏÒ©¿ÉÓÃÒÑÖª´¿¶ÈµÄ¶ÔÕÕÆ·»òÑùÆ·½øÐвⶨ,»òÓñ¾·¨ËùµÃ½á¹ûÓëÒѽ¨Á¢×¼È·¶ÈµÄÁíÒ»·½·¨²â¶¨µÄ½á¹û½øÐбȽÏ.
ÖÆ¼Á¿ÉÓú¬¼ºÖªÁ¿±»²âÎïµÄ¸÷×é·Ö»ìºÏÎï½øÐвⶨ,¼´²ÉÓÃÔڿհ׸¨ÁÏÖмÓÈëÔ­ÁÏÒ©¶ÔÕÕÆ·µÄ·½·¨.
Èç²»Äܵõ½ÖƼÁµÄÈ«²¿×é·Ö,¿ÉÏòÖÆ¼ÁÖмÓÈëÒÑÖªÁ¿µÄ±»²âÎï½øÐвⶨ,»òÓëÁíÒ»¸öÒѽ¨Á¢×¼È·¶ÈµÄ·½·¨±È½Ï½á¹û.
ÖÐÒ©·ÖÎöµÄ׼ȷ¶ÈÒ»°ãÓüÓÑù»ØÊÕÊÔÑéºâÁ¿.ÖÐÒ©»ØÊÕÂÊÒ»°ãÒªÇóÔÚ95¡«105%·¶Î§ÄÚ,ÓÐЩ·½·¨²Ù×÷²½Öè·±¶àʱ,¿ÉÒªÇóÔÚ90¡«110%·¶Î§ÄÚ.RSDÒ»°ãÔÚ2%ÒÔÄÚ.
2.ÔÓÖʶ¨Á¿²â¶¨µÄ׼ȷ¶È
¿ÉÏòÔ­ÁÏÒ©»òÖÆ¼ÁÖмÓÈëÒÑÖªÁ¿ÔÓÖʽøÐвⶨ.Èç¹û²»Äܵõ½ÔÓÖÊ»ò½µ½â²úÎï,¿ÉÓñ¾·¨²â¶¨½á¹ûÓëÁíÒ»³ÉÊìµÄ·½·¨½øÐбȽÏ.
(¶þ)¾«ÃܶÈ(precision) ¾«ÃܶÈÊÇÖ¸Ôڹ涨Ìõ¼þÏÂ,ͬһ¸ö¾ùÔÈÑùÆ·,¾­¶à´ÎÈ¡Ñù²â¶¨ËùµÃ½á¹ûÖ®¼äµÄ½Ó½ü³Ì¶È.ÓÃÆ«²î(d),±ê׼ƫ²î(SD),Ïà¶Ô±ê׼ƫ²î(RSD)(±äÒìϵÊý,CV)±íʾ.
Æ«²î(d):²âÁ¿ÖµÓëÆ½¾ùÖµÖ®²î
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±ê×¼(Æ«)²î(SD»òS)
Ïà¶Ô±ê×¼(Æ«)²î(RSD),Ò²³Æ±äÒìϵÊý(CV)
1. ÖØ¸´ÐÔ(repeatability):ÔÚÏàͬÌõ¼þÏÂ,ÓÉͬһ¸ö·ÖÎöÈËÔ±²â¶¨ËùµÃ½á¹ûµÄ¾«ÃܶÈ;Ôڹ涨µÄ·¶Î§ÄÚ,ÖÁÉÙÓÃ9´Î²â¶¨½á¹ûÆÀ¼Û,ÈçÖÆ±¸Èý¸ö²»Í¬Å¨¶ÈÑùÆ·¸÷²âÈý´Î»ò°Ñ±»²âÎïŨ¶Èµ±×÷100%,ÖÁÉÙ²â6´Î½øÐÐÆÀ¼Û.
2. Öм侫ÃÜ¶È Í¬Ò»ÊµÑéÊÒ,²»Í¬Ê±¼äÓɲ»Í¬·ÖÎöÈËÔ±Óò»Í¬É豸ËùµÃ½á¹ûµÄ¾«ÃܶÈ.
3. ÖØÏÖÐÔ(reproducibility)²»Í¬ÊµÑéÊÒ,²»Í¬·ÖÎöÈËÔ±²â¶¨½á¹ûµÄ¾«ÃܶÈ.
Êý¾ÝÒªÇó:Ð豨¸æRD,RSDºÍ¿ÉÐÅÏÞ.
(Èý)¼ì²âÏÞ(limit of detection, LOD)
¼ì²âÏÞϵָÊÔÑùÔÚÈ·¶¨µÄʵÑéÌõ¼þÏÂ,±»²âÎïÄܱ»¼ì²â³öµÄ×îµÍŨ¶È»òº¬Á¿.
ÊÇÏ޶ȼìÑéЧÄÜÖ¸±ê,ÎÞÐ趨Á¿²â¶¨,Ö»ÒªÖ¸³ö¸ßÓÚ»òµÍÓڸù涨Ũ¶È¼´¿É.

1.·ÇÒÇÆ÷·ÖÎöÄ¿ÊÓ·¨
ÓÃÒÑ֪Ũ¶ÈµÄ±»²âÎï,ÊÔÑé³öÄܱ»¿É¿¿µØ¼ì²â³öµÄ×îµÍŨ¶È»òÁ¿.
2.ÐÅÔë±È·¨
ÓÃÓÚÄÜÏÔʾ»ùÏßÔëÒôµÄ·ÖÎö·½·¨(ÒÇÆ÷·ÖÎö·½·¨),ÊǰÑÒÑÖªµÍŨ¶ÈÊÔÑù²â³öµÄÐźÅÓë¿Õ°×ÑùÆ·²â³öµÄÐźŽøÐбȽÏ,Ëã³öÄܱ»¿É¿¿µØ¼ì²â³öµÄ×îµÍŨ¶È»òÁ¿.Ò»°ãÒÔÐÅÔë±È(S/N)3:1»ò2:1ʱµÄÏàӦŨ¶È»ò×¢ÈëÒÇÆ÷µÄÁ¿È·¶¨¼ì²âÏÞ.
(1)¿Õ°×Öµ=0ʱ;¢Ù²â¶¨±³¾°10´ÎÒÔÉÏ,Çó³ö±ê×¼²î¦Òb.¢Ú½«¦Òb³ËÒÔÈý±¶;¢ÛÔÚ¹¤×÷ÇúÏßÉÏÇó³ö3¦ÒbÏà¶ÔÓ¦µÄŨ¶ÈXb;¼´Îª·½·¨µÄ¼ì³öÖµ;
(2)¿Õ°×Öµ²»µÈÓÚ0;¢Ù²â¶¨±³¾°10´ÎÒÔÉÏ,Çó³ö±ê×¼²î¦Òb ;¢Ú½«¦Òb ³ËÒÔÈý±¶;¢ÛÔÚ¹¤×÷ÇúÏßÉÏÇó³ö3 ¦Òb Ïà¶ÔÓ¦µÄŨ¶ÈXb ;¢Ü½«ÇóµÃµÄ¶ÔӦŨ¶ÈÖµ¼ÓÉϿհ×Öµ¼´µÃ¸Ã·½·¨µÄ¼ì³öÏÞ.
(ËÄ)¶¨Á¿ÏÞ(1imit of quantitation,LOQ)
Ö¸ÑùÆ·Öб»²âÎïÄܱ»¶¨Á¿²â¶¨µÄ×îµÍÁ¿,½á¹ûÓ¦¾ßÓÐÒ»¶¨×¼È·¶ÈºÍ¾«ÃܶÈÒªÇó.
³£ÓÃÐÅÔë±È·¨È·¶¨¶¨Á¿ÏÞ,Ò»°ãÒÔÐÅÔë±È(S/N)Ϊ10:1ʱÏàÓ¦µÄŨ¶È»ò×¢ÈëÒÇÆ÷µÄÁ¿½øÐÐÈ·¶¨,Ò²¿É°´1984Äê¹ú¼Ê´¿´âºÍÓ¦Óû¯Ñ§ÁªºÏ»á(IVPAC)¹æ¶¨:ÓÃÒÇÆ÷Ëù²â¿Õ°×±³¾°ÏìÓ¦±ê×¼²î(SD)µÄ10±¶Îª¹À¼ÆÖµ,ÔÙ¾­ÊÔÑéÈ·¶¨·½·¨µÄʵ¼Ê²â¶¨ÏÂÏÞ.

ÒÇÆ÷·ÖÎö:ͨ¹ý²â¶¨Ò»×é¿ÕµÄÑùÆ·µÄ±³¾°Ðźźó¼ÆËã±ê×¼²îS.ÒÔ1OSÀ´¹ÀË㶨Á¿ÏÞ¶È.(ÒÔ¶¨Á¿ÏÞ¶ÈÖÆ±¸µÄÑùÆ·À´ÑéÖ¤)
·ÇÒÇÆ÷·ÖÎö:ͨ¹ý·ÖÎö¼ºÖª±»²âÎïŨ¶ÈµÄÑùÆ·²¢È·¶¨Ò»¸öÑùÆ·Öб»²âÎï¿É±»×¼È·ºÍ¾«Ãܲⶨ³öµÄ×îµÍŨ¶È(Á¿).
(Îå)רÊôÐÔ(specificity ) (Ñ¡ÔñÐÔ):
Ö¸ÓÐÆäËû³É·Ö(ÔÓÖÊ,½µ½âÎï,¸¨ÁϵÈ)¿ÉÄÜ´æÔÚÇé¿öϲÉÓõķ½·¨ÄÜ׼ȷ²â¶¨³ö±»²âÎïµÄÌØÐÔ,ÄÜ·´Ó³¸Ã·½·¨ÔÚÓй²´æÎïʱ¶Ô¹©ÊÔÎï׼ȷ¶ø×¨ÊôµÄ²â¶¨ÄÜÁ¦,ÊÇÖ¸¸Ã·¨ÓÃÓÚ¸´ÔÓÑùÆ··ÖÎöʱÊÇ·ñÊܵ½Ï໥¸ÉÈų̶ȵĶÈÁ¿.
ͨ³£Í¨¹ý·ÖÎöº¬ÓмÓÁËÔÓÖÊ,½µ½â²úÎï,Óйػ¯Ñ§ÎïÖÊ»ò°²Î¿¼Á³É·ÖµÄÑùÆ·,½«Ëù»ñ·ÖÎö½á¹ûÓëδ¼ÓǰÊö³É·ÖÖ®ÑùÆ·µÄ²âÊÔ½á¹û½øÐбȽÏ,Á½×é²âÊÔ½á¹ûÖ®²î¼´×¨ÊôÐÔ.
1.¼ø±ð·´Ó¦ Ó¦ÄÜÓë¿ÉÄܹ²´æµÄÎïÖÊ»ò½á¹¹ÏàËÆ»¯ºÏÎïÇø±ð,²»º¬±»·ÖÎöµÄÑùÆ·,ÒÔ¼°½á¹¹ÏàËÆ»ò×é·ÖÖеÄÓйػ¯ºÏÎï,¾ùÓ¦³Ê¸º·´Ó¦.
2.º¬Á¿²â¶¨ºÍÔÓÖʲⶨ É«Æ×·¨ºÍÆäËû·½·¨,Ó¦¸½´ú±íÐÔͼÆ×,Òà˵Ã÷רÊôÐÔ.ͼÖÐÓ¦±êÃ÷¸÷×é·ÝµÄλÖÃ,É«Æ×·¨ÖеķÖÀë¶ÈÓ¦·ûºÏÒªÇó.
(Áù) ÏßÐÔ(Linearity)
ÔÚÉè¼ÆµÄ·¶Î§ÄÚ,²âÊÔ½á¹ûÓëÊÔÑùÖб»²âÎïŨ¶ÈÖ±½Ó³ÊÕý±È¹ØÏµµÄ³Ì¶È.
ÏßÐÎͨ³£ÓÃ×îС¶þ³Ë·¨´¦ÀíÊý¾ÝÇóµÃ»Ø¹éÇúÏßµÄбÂÊ(Slope)À´±íʾ.Êý¾ÝÒªÇó:ÖÁÉÙÐèÒªÎå¸öŨ¶È¿¼²ìÏßÐÎ,ÐèÌṩÏà¹ØÏµÊý,y½Ø¾à(ÊǼ춨µÄ¿ÉÄÜÆ«²î),»Ø¹éбÂʼ°·½²îµÈ²ÎÊý,Ó¦Áгö»Ø¹é·½³ÌÊýºÍÏßÐÔͼ.

(Æß)·¶Î§(Range):
Ö¸´ïµ½Ò»¶¨¾«ÃܶÈ,׼ȷ¶ÈºÍÏßÐÔµÄÌõ¼þÏÂ,²âÊÔ·½·¨ÊÊÓõĸß,µÍÏÞŨ¶È»òÁ¿µÄÇø¼ä.
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º¬Á¿²â¶¨·¶Î§Îª80%-120%;º¬Á¿¾ùÔȶȷ¶Î§Îª70%-130%;ÔÓÖʲⶨӦΪ±»²âÔÓÖÊÏ޶ȵÄ50%-120%;Èܳö¶ÈӦΪ²â¶¨·¶Î§µÄ¡À20%.

(°Ë) ÄÍÓÃÐÔ Ö¸²â¶¨Ìõ¼þÉÔÓб䶯ʱ,½á¹û²»ÊÜÓ°ÏìµÄ³ÐÊ̶ܳÈ,Ϊ³£¹æ¼ìÑéÌṩÒÀ¾Ý.ÊǺâÁ¿ÊµÑéÊҺ͹¤×÷ÈËÔ±Ö®¼äÔÚÕý³£Çé¿öÏÂʵÑé½á¹ûÖØÏÖÐԵij߶È.
·ÖÎö·½·¨ÖØÏÖÐԵIJⶨÊÇͨ¹ýÔÚ²»Í¬µÄʵÑéÊÒÄÚ²»Í¬µÄʵÑéÕß¶ÔͬһÑùÆ·µÄ·Ö±ð²âÊÔ¶ø»ñµÃµÄ.(»ñµÃµÄÕâÖÖÔÙÓëÕý³£¼ì¶¨Ïµľ«ÃܶȽøÐбȽÏ,´Ó¶øÈ·¶¨¸Ã·¨µÄÄÍÓÃÐÔ,»ò³Æ´Ö·Å¶È)
(¾Å)Ó¦ÓÃ
1. ¼ø±ðÊÔÑé³ýרÊôÐÔ,ÄÍÓÃÐÔÍâ,ÆäËü¶¼²»ÒªÇó.
2. ÔÓÖʵÄÏÞÁ¿¼ì²é³ýרÊôÐÔ,¼ì²âÏÞ,ÄÍÓÃÐÔÍâ,ÆäËü¶¼²»ÒªÇó.
ÔÓÖʵĺ¬Á¿²â¶¨³ý¼ì²âÏÞÍâ,ÆäËü¶¼ÒªÇó.
3. º¬Á¿²â¶¨¼°ÈܳöÁ¿²â¶¨³ý¼ì²âÏÞ,¶¨Á¿ÏÞÍâ,ÆäËü¶¼ÒªÇó.
(Ê®)¸÷ÖÖº¬Á¿²â¶¨·½·¨¶ÔЧÄÜÖ¸±êµÄÒªÇó
1. ÈÝÁ¿·ÖÎö·¨:ÓÃÔ­ÁÏÒ©¾«ÖÆÆ·(º¬Á¿>99.5%)»ò¶ÔÕÕÆ·¿¼²ì·½·¨µÄ¾«ÃܶÈ,Ïà¶Ô±ê×¼²îÒ»°ãÓ¦²»´óÓÚ0.2%;½øÐлØÊÕÂÊÊÔÑé.»ØÊÕÂÊÒ»°ãÔÚ99.7¡«100.3%Ö®¼ä.
2. UV·¨:ÓÃÊʵ±Å¨¶ÈµÄ¾«ÖÆÆ·½øÐвⶨ,ÆäRSDÒ»°ã²»´óÓÚ1%.ÖÆ¼ÁµÄ²â¶¨,»ØÊÕÂÊÒ»°ãÓ¦ÔÚ98%¡«102%Ö®¼ä.
ÏßÐÔ:Îü¹â¶ÈAÒ»°ãÔÚ0.2¡«0.7,Ũ¶Èµãn=5.ÓÃŨ¶Èc¶ÔA×÷ÏßÐԻع鴦Àí,µÃÒ»Ö±Ïß·½³Ì,rÓ¦´ïµ½0.9999(n=5),·½³ÌµÄ½Ø¾àÓ¦½üÓÚÁã.
3. HPLC·¨:ÒªÇóRSD<2%,»ØÊÕÂÊ98%¡«102%Ö®¼ä.
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