??????

鷽???

????

??鷽???

??

λ???ο

?鷽??

鷽???????????????顢????Χ顢????档

鷽??

??????????鷽飬?鷽??

1??

鷽???С???????м塢?й????涨?????

???鷶Χ?鷽?裬й???

2??

??????

A??????????絼??

B???ζ????? ?ζ???????????

C?????????Ч??????

????????????????

??鷽????????ɡ

?????????У???

3У

У??鷽?е??????У??УУ????????顣

?Ч??????顣?涨?2??С?β?涨??2

????????ζ???У

4?

????书?￡??????飬????

????????飬?????

???????飬y????????

鹤???????鵵???????

5?

????????1????????????

??????3?6?1?

???·???顢?顢???????е?顣

鷽?

鷽????

1????USPEPCPJP????????飬????????????

2???α????????????α??????б???????Σж??????

в????

3??????????????Χ?????

?鷽??

?????л??鷽???????

е?????????鷽????????й???鷽

塢??

?????????顣????????????????Χ?????????????С???????????????У?????

?????ν??ж?д???????

ACS????????????

1?limit of detectionLOD壺

?????????????k???????S/N2131???????????????????S/N31???

2???

D=3N/S1

?УN; S?D

?????

S=I/Q2

?УS?I???Q

?1?2???

D=3NQ/I 3

?УQNI???I/N?yμ?S/N???????????????????÷??

3?

???2?????????????

A??????????????1mg/L??μ?300????D=31mgL-1/300=0.01mg/L?t???10ul?D=31mgL-110ul/300=0.1ng

B???????????????????5??5mL???D=0.01mgL-15mL/5g=0.01 mg/kg

???д???0.01mg/kg???5g,???5mL??????0.01mg/L??100%??￡?3???????У????

4?

?3???С?????С?????Ск?????巽?й?????壺

A/壨peak to peak???λ???

B/壨half peak to peak???λ???1/2

CRMS???λ???

?????λк?????????λ???????????

5??

A????????й涨???95%?????????????

L = 4.6Sb

?УL???

Sb ??nε???в??????20?

B??????IUPAC涨?????

L = KSb/S

L??

Sb??β?????

S ?У??б?

? ??????20Ρ????????k??3??? ?????90%

=0ζ С???????У???????飬???

?????????涨?????????У涨?0.010????L

C EPA SW846涨е??

L=3.143Sb

D?Щ???????0.010????????Э

E?????????С?????

F?缫У?????????λ?????佻??????缫??

?????L???涨????涨?????????2??

6У??

A裬???????????μ????????????Χ

BУ??????5??

CУ??????У?ЩУ?б?С??У??????2е??2????

?????????У???????С5%???С10%У?

С

????????????????????????????????м????????У??????????壬????к?塣