²é¿´: 561  |  »Ø¸´: 1

chenzhi-5

ľ³æ (ÖøÃûдÊÖ)

[½»Á÷] ¡¾ÇóÖú¡¿ÇóÖú»¯Ñ§´«¸ÐÆ÷ ×îµÍ¼ì²âÏߵļÆËã

ÇóÖú»¯Ñ§´«¸ÐÆ÷ ×îµÍ¼ì²âÏߵļÆËã ¾ßÌåһЩ£¬Ð»Ð»£¡
»Ø¸´´ËÂ¥

» ²ÂÄãϲ»¶

» ±¾Ö÷ÌâÏà¹Ø¼ÛÖµÌùÍÆ¼ö£¬¶ÔÄúͬÑùÓаïÖú:

ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

zyf19840407

Òø³æ (СÓÐÃûÆø)

¡ï
Сľ³æ: ½ð±Ò+0.5, ¸ø¸öºì°ü£¬Ð»Ð»»ØÌû
ÒýÓûØÌû:
738485Â¥: Originally posted by chenzhi-5 at 2010-07-23 21:19:22:
ÇóÖú»¯Ñ§´«¸ÐÆ÷ ×îµÍ¼ì²âÏߵļÆËã ¾ßÌåһЩ£¬Ð»Ð»£¡

ÏßÐÔÓ뷶Χ (linearity and range) ·ÖÎö·½·¨µÄÏßÐÔÊÇÔÚ¸ø¶¨·¶Î§ÄÚ»ñÈ¡ÓëÑùÆ·Öй©ÊÔÎïŨ¶È³ÉÕý±ÈµÄÊÔÑé½á¹ûµÄÄÜÁ¦¡£»»¾ä»°Ëµ£¬¾ÍÊǹ©ÊÔÎïŨ¶ÈµÄ±ä»¯ÓëÊÔÑé½á¹û(»ò²âµÃµÄÏìÓ¦ÐźÅ)³ÉÏßÐÔ¹ØÏµ¡£
  ËùνÏßÐÔ·¶Î§ÊÇÖ¸ÀûÓÃÒ»ÖÖ·½·¨È¡µÃ¾«Ãܶȡ¢×¼È·¶È¾ù·ûºÏÒªÇóµÄÊÔÑé½á¹û£¬¶øÇÒ³ÉÏßÐԵĹ©ÊÔÎïŨ¶ÈµÄ±ä»¯·¶Î§£¬Æä×î´óÁ¿Óë×îСÁ¿Ö®¼äµÄ¼ä¸ô£¬¿ÉÓÃmg£¯L ~ mg£¯L¡¢ ug£¯ml ~ ug£¯mlµÈ±íʾ¡£
  ÏßÐÔÓ뷶ΧµÄÈ·¶¨¿ÉÓÃ×÷ͼ·¨(ÏìÓ¦ÖµY£¯Å¨¶ÈX)»ò¼ÆËã»Ø¹é·½³Ì(Y£½a+bX)À´Ñо¿½¨Á¢¡£
  ²â¶¨ÑùƷʱËùÓÐÉúÎïÒ©Îï·ÖÎö·½·¨¶¼±ØÐëͬʱ×÷±ê×¼ÇúÏß¡£Ã¿´Î×÷±ê×¼ÇúÏßʱ£¬·½·¨Ó¦Óë·ÖÎö·½·¨¿¼ºËʱÍêȫһÖ¡£±ê׼Ũ¶ÈÓ¦°üÀ¨Ò»¶¨ÌݶȵÄ5-8¸öŨ¶È(·ÇÏßÐÔÕßÈçÃâÒß·ÖÎö¿ÉÊʵ±Ôö¼Ó)£¬Ã¿¸öŨ¶ÈÖ»Ðè²â¶¨Ò»´Î(ÃâÒß·ÖÎö¿É²â¶¨Á½´Î²¢È¡¾ùÖµ)£»±ê×¼ÇúÏßÓ¦¸²¸ÇÑùÆ·¿ÉÄܵÄŨ¶È·¶Î§£¬¶ÔÓÚº¬Á¿²â¶¨ÒªÇóÒ»°ãŨ¶ÈÉÏÏÞΪÑùÆ·×î¸ßŨ¶ÈµÄ120£¥£¬ÏÂÏÞΪÑùÆ·×îµÍŨ¶ÈµÄ80£¥ (µ«Ó¦¸ßÓÚLOQ)£»Ä¿Ç°ÈԹ㷺²ÉÓÃÏà¹ØÏµÊý(r)±íʾ±ê×¼ÇúÏßµÄÏßÐÔ¶È¡¢²¢¿ØÖÆr¡Ý0.9900¡£¶ÔÕÕÆ·µÄLOQ±ØÐë°üÀ¨ÔÚÏßÐÔ·¶Î§
¼ì²âÏÞ(limit of detection£¬LOD) ÊÇÖ¸·ÖÎö·½·¨Äܹ»´Ó±³¾°ÐźÅÖÐÇø·Ö³öÒ©Îïʱ£¬ËùÐèÑùÆ·ÖÐÒ©ÎïµÄ×îµÍŨ¶È£¬ÎÞÐ趨Á¿²â¶¨¡£   
    LODÊÇÒ»ÖÖÏ޶ȼìÑéЧÄÜÖ¸±ê£¬Ëü¼È·´Ó³·½·¨ÓëÒÇÆ÷µÄÁéÃô¶ÈºÍÔëÒôµÄ´óС£¬Ò²±íÃ÷ÑùÆ·¾­´¦Àíºó¿Õ°×(±¾µ×)ÖµµÄ¸ßµÍ¡£Òª¸ù¾Ý²ÉÓõķ½·¨À´È·¶¨¼ì²âÏÞ¡£µ±ÓÃÒÇÆ÷·ÖÎö·½·¨Ê±£¬¿ÉÓÃÒÑ֪Ũ¶ÈµÄÑùÆ·Óë¿Õ°×ÊÔÑé¶ÔÕÕ£¬¼Ç¼²âµÃµÄ±»²âÒ©ÎïÐźÅÇ¿¶ÈSÓëÔëÒô(»ò±³¾°ÐźÅ)Ç¿¶ÈN£¬ÒÔÄÜ´ïµ½S£¯N£½2»òS£¯N£½3ʱµÄÑùÆ·×îµÍҩŨΪLOD£»Ò²¿Éͨ¹ý¶à´Î¿Õ°×ÊÔÑ飬ÇóµÃÆä±³¾°ÏìÓ¦µÄ±ê×¼²î£¬½«Èý±¶¿Õ°×±ê×¼²î(¼´3¦Ä¿Õ»ò3S¿Õ)×÷Ϊ¼ì²âÏ޵ĹÀ¼ÆÖµ¡£ÎªÊ¹¼ÆËãµÃµ½µÄLODÖµÓëʵ¼Ê²âµÃµÄLODÖµÒ»Ö£¬¿ÉÓ¦ÓÃУÕýϵÊý(f)À´Ð£Õý£¬È»ºóÒÀÖ®ÖÆ±¸ÏàÓ¦¼ì²âÏÞŨ¶ÈµÄÑùÆ·£¬·´¸´²âÊÔÀ´È·¶¨LOD¡£ÈçÓ÷ÇÒÇÆ÷·ÖÎö·½·¨Ê±£¬¼´Í¨¹ýÒÑ֪Ũ¶ÈµÄÑùÆ··ÖÎöÀ´È·¶¨¿É¼ì³öµÄ×îµÍˮƽ×÷Ϊ¼ì²âÏÞ¡£
·Å·ÉÃÎÏ룬ÈÃËü·ÉµÃ¸üÔ¶
2Â¥2012-03-16 16:37:18
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
Ïà¹Ø°æ¿éÌø×ª ÎÒÒª¶©ÔÄÂ¥Ö÷ chenzhi-5 µÄÖ÷Ìâ¸üÐÂ
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] 289Çóµ÷¼Á +5 »³èªÎÕè¤l 2026-03-20 5/250 2026-03-20 20:24 by JourneyLucky
[¿¼ÑÐ] ²ÄÁÏѧÇóµ÷¼Á +3 Stella_Yao 2026-03-20 3/150 2026-03-20 19:28 by JourneyLucky
[¿¼ÑÐ] 086500 325 Çóµ÷¼Á +3 Áì´øÐ¡ÐÜ 2026-03-19 3/150 2026-03-20 18:38 by ¾¡Ë´Ò¢1
[¿¼ÑÐ] ±¾ÈË¿¼085602 »¯Ñ§¹¤³Ì ר˶ +18 ²»ÖªµÀ½Ðʲô£¡ 2026-03-15 20/1000 2026-03-20 13:52 by danney002
[¿¼ÑÐ] 296Çóµ÷¼Á +4 www_q 2026-03-18 8/400 2026-03-20 12:12 by ѧԱ8dgXkO
[¿¼²©] ÕÐÊÕ²©Ê¿1-2ÈË +3 QGZDSYS 2026-03-18 3/150 2026-03-20 11:58 by ßÉßÉßÉßɽÐ
[¿¼ÑÐ] Ò»Ö¾Ô¸Î÷ÄϽ»Í¨ ר˶ ²ÄÁÏ355 ±¾¿ÆË«·Ç Çóµ÷¼Á +4 Î÷ÄϽ»Í¨×¨²Ä355 2026-03-19 4/200 2026-03-20 11:39 by »¨¿ª¸»¹óÐÒ¸£ÈËÉ
[¿¼ÑÐ] 288Çóµ÷¼Á +15 ÓÚº£º£º£º£ 2026-03-19 15/750 2026-03-19 22:41 by ѧԱ8dgXkO
[¿¼²©] É격26Äê +3 °Ë6°Ë68 2026-03-19 3/150 2026-03-19 19:43 by nxgogo
[¿¼ÑÐ] 266Çóµ÷¼Á +5 ÑôÑôÍÛÈû 2026-03-14 10/500 2026-03-19 15:08 by ÑôÑôÍÛÈû
[¿¼ÑÐ] 0703»¯Ñ§µ÷¼Á +5 pupcoco 2026-03-17 8/400 2026-03-19 13:58 by houyaoxu
[¿¼ÑÐ] 311Çóµ÷¼Á +4 ¶¬Ê®Èý 2026-03-18 4/200 2026-03-18 21:47 by ¾¡Ë´Ò¢1
[¿¼ÑÐ] 295Çóµ÷¼Á +3 Ò»Ö¾Ô¸¾©Çø211 2026-03-18 5/250 2026-03-18 17:03 by zhaoqian0518
[¿¼ÑÐ] 299Çóµ÷¼Á +5 ¡÷С͸Ã÷* 2026-03-17 5/250 2026-03-18 11:49 by ¾¡Ë´Ò¢1
[¿¼ÑÐ] ÓÐûÓеÀÌú/ÍÁľµÄÏëµ÷¼ÁÄÏÁÖ£¬¸ø×Ô¼ºÕÐʦµÜÖС« +3 TqlXswl 2026-03-16 7/350 2026-03-17 15:23 by TqlXswl
[¿¼ÑÐ] Ò»Ö¾Ô¸ÄϾ©´óѧ£¬080500²ÄÁÏ¿ÆÑ§Ó빤³Ì£¬µ÷¼Á +4 Jy? 2026-03-16 4/200 2026-03-17 11:02 by gaoqiong
[¿¼ÑÐ] [µ¼Ê¦ÍƼö]Î÷ÄϿƼ¼´óѧ¹ú·À/²ÄÁϵ¼Ê¦ÍƼö +3 ¼â½ÇСºÉ 2026-03-16 6/300 2026-03-16 23:21 by ¼â½ÇСºÉ
[¿¼ÑÐ] 0854¿ØÖƹ¤³Ì 359Çóµ÷¼Á ¿É¿çרҵ +3 626776879 2026-03-14 9/450 2026-03-16 17:42 by 626776879
[¿¼ÑÐ] 321Çóµ÷¼Á +5 ´óÃ×·¹£¡ 2026-03-15 5/250 2026-03-16 16:33 by houyaoxu
[¿¼ÑÐ] 327Çóµ÷¼Á +6 ʰ¹âÈÎȾ 2026-03-15 11/550 2026-03-15 22:47 by ʰ¹âÈÎȾ
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û