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ӷͲ Ƽ ߲ˮũҩIJⶨ

ʱ䣺2017-07-05 ߣ׺ˮ ˮ֪ʶ
    

һĿ
1Ӳecdļԭʹð취
2ũҩIJⶨ취
ԭ
  ecdһѡԼԺxspno縺ǿʣӰܴ󣬶Էǵ縺ʣӰС
   Դ3h63nib߽n2Ӻ͵ӣЩӺ͵ڵ糡¹ɡ縺Ʒ󣬱㲶ɵӣɵĸӺӱΪԷӣʹ䣬Ӧĸźš塣һΧڣӦźźƷֵŨȳȡ
ddtĿǰдлũҩ仯ѧȶʩúڴˮ塢ֲвţ尲
üȡƷ0.23%ov-172.8%ov-210ϹҺ룬ecd귨
Լ
ɫǣecdĻ©0.5*22cm1000mlҺ©2ֻ
Լˮơơ顢ͪŨ(Ϊar)(3030Ŀ)ov17ov210(ɫ׼)
chromosorb wawdmcs-666-666á666ġ666ppddeopһddtppһdddpp
ddt?
ġʵ鲽

3mm2m̶ࣺo23ov17+28ov210chromosorb?? wawһdmgs80~100Ŀ
tc=200棬td=210棬ti=230棻n2? (9999)60~70mlmin Ŵ10850s
2ȡ;
ϴ߲˻ˮ飬ϳȡl00gƷ뵷УӼ200mlΧ50mlٵ2min
Һ500m1ĻУˮϴײı3000rminĻУ15minҺ
ʽ©ˣüϴĻʽ©ˣҺ1000miҺ©ʹֲ㡣
ˮֵڶ1000m1Һ©С500m12ҡ1minʹ侲ֲֹ㡣ٽˮ㲢ڶ
Һ©У50miҡ2minֹȥˮ㡣Һ©еļȡҺͨװˮƵļ
©250m1ƿСȡҺˮԡŨ20һ30miңü鶨ݵ50ml
50miƿ5miȡҺڵŨ1m1оΪ0.5cm22cmܣװ
(1gμ0.6miŨ)ĵײһξϴӹޣĶ˷ˮ
ơϴŨļҲУȻüϴ25m1ƿռ??
25m1ƿȡһľҺŨɽ

(1) ҪͨԴ
(2) ¶ȣ¶Ⱥ£ ΢ŴԴغͷŴȣȸ
Ϊ108أ˥ʵλã-طڡϣ
() 򿪡Դͷsѡ񡱵50s
() 򿪼¼ǵԴͼ¼ʿأλѼ¼ʵ0.8һ0.95λá
() ʱԴشڹλã¼ָ㷽ƶ(Ӧı䡰λ)
ָƶӦڼ¼̷Χ6ڣӦС0.1mv
() ȶ󣬾Ϳɽ
4׼Һƣ
üơ666¡666á666ġ666ppddeopһddtppһdddppddt
Ϊl00ppm(¡666Ҫܽ)Һ ҺŨƷŨ
5ɫײⶨ
(1)øŨȵddt׼ҺעɫǣȷecdԷΧ
(2)ƷҺƷķߣñ׼ҺŨIJҺ
(3)ͬɫ£νƷͱ¼trɫͼ
塢ݴ
ɫͼߣ߲˺ˮеddtĺ
ci? (mg/kg)=hi*cs*ws? hs*wi*k
ʽУ
ciƷũҩŨȣ
hi۳Լհ׺ķߣ
wsһ׼Һأ
wiƷҺ
hs׼Һߣ
cs׼ҺŨ(mgkg )
kŨϵ

1ԲⶨкӰ죿ѡ
2ηֹecdȾ
3õעͲΪʲôñͪȷµϴӣ
4ⶨʱΪʲôҪȷecdԷΧ
ߡע
1.ʹecdʱӦøߴ
2װɫڸʹ¶ȵ³ϻδϻþԲecd
3ʹecdʱʱͣҪرֻٽ͡
4õעȣܼϴԲñͪȷµϴӡ
5ȡг黯ʱɲñġ˵Ȱ취黯лˮ϶ʱɼˮˮ

 

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