ú|(zh)̿Fy(c)ԇ(sh)(yn)
1
(bio)(zhn)Ҏ(gu)̿Fԇ(yn)
(bio)(zhn)mľ|(zh)̿
2 Ø(bio)(zhn)
И(bio)(zhn)ėlͨ^(gu)ڱ(bio)(zhn)ö(gu)ɞ鱾(bio)(zhn)ėl(bio)(zhn)r(sh)ʾ汾ЧИ(bio)(zhn)(hu)ӆʹñ(bio)(zhn)(yng)̽ӑʹИ(bio)(zhn)°汾Ŀ
GB/T6682-1992 (sh)(yn)ˮҎ(gu)ԇ(yn)
GB/T9721-1988 W(xu)ԇ շֹȷͨtͿҊ(jin)ⲿ֣
3 һ 110-ƆƆֹȷ
3.1 ԭ
}u߀ԭ—c_Һ{(dio)(ji)PH4.5FFe2+c110Ɔɽۼtɫj(lu)ڷֹӋ(j)L(zhng)510nm̎y(c)
3.2 x
ֹӋ(j)GB/T9721֮Ҏ(gu)
3.3 ԇҺ
ˮ(yng)GB/T6682(j)ˮҎ(gu)ԇָ?c)?br />
3.3.1 }ᣨGB/T622“1+9”Һ
3.3.2 ᣨGB/T676cGB/T694-c_ҺPH=4.5
Qȡ16.4go(w)ˮc8.4mL,ˮܽϡ100mL
3.3.3 }uGB/T6685}uҺ
Qȡ1g}u100 mLˮ
3.3.4 110ƆҺGB/T1293
Qȡ0.50g 110Ɔ10 mLҴ90 mLˮڰ̎Һɫ(yng)
3.3.5 ၆FFeSO4NH42?SO4?6H2O
0.01mg/mLF(bio)(zhn)ҺQȡ0.702g၆F@ں0.5mLˮ1000mLƿУϡ(bio)ȡ100mLϡ1000mLҺF(xin)e2+0.01mg/mL
3.4
3.4.1 Qȡ(jng)71μmĸԇ1.0gQ(zhn)10 mg100mLFƿ“1+9”}Һ25mL5min^(gu)V100mLƿУßˮִϴVVϴҺϲsҜأϡ(bio)ȡVҺ10mL50mLƿ-c_Һ3.3.25mL}uҺ3.3.32.5mL110-ƆҺ3.3.41 mLϡ(bio)u10minɫ(yng)÷ֹӋ(j)ڲL(zhng)510nm1Mɫy(c)
3.4.2 (bio)(zhn)L
քeȡF(bio)(zhn)Һ0.1.0.2.03.04.05.06.07.0 mL8ֻ50 mLƿУ-c_Һ5 mL}uҺ2.5 mL110ƆҺ1mLˮϡ(bio)u10min÷ֹӋ(j)ڲL(zhng)510nm⏽1MıɫМy(c)F(bio)(zhn)ҺʹmLM(bio)Ȟv(bio)LƘ(bio)(zhn)
3.5 Y(ji)
Ę(bio)(zhn)ϲcy(c)õ(du)(yng)FĘ(bio)(zhn)ҺmL̿Fʽ1Ӌ(j)㣺
X=V/100m…………………………………………………(1)
ʽУX——ԇFİٷֺ%
V——ԇȲF(bio)(zhn)Һ(sh)mL
m——ԇ|(zh)g
4 ڶ @
4.1 ԭ
^(gu)᰷@ɫFFe2+c᰷ɼtɫj(lu)Ŀʾɫy(c)
4.2 ԇҺ
4.2.1 }ᣨGB/T622“1+9”Һ
4.2.2 ^(gu)@GB/T655,10g/L^(gu)@Һ.
4.2.3 @GB/T660, 10g/L@Һ
4.2.4 F@GB/T1279FeNH4(SO4)2?12H2O
0.01mg/mLF(bio)(zhn)ҺQȡ0.8634g၆F@ܽˮ2.5mL1000mLƿϡ(bio)uҺF(xin)e3+0.1mLÕr(sh)(zhn)_ȡ100mLuҺF(xin)e3+0.01mg/mL
4.3
4.3.1 Qȡ(jng)71μmĸԇ1.00gQ(zhn)10 mg100mLFƿ“1+9”}Һ25mL5min^(gu)V100mLƿßˮ?dng)?sh)ϴVVϴҺϲsҜϡ(bio)ȡVҺ10mL50mLɫ^(gu)@Һ5mLϡ50mLu10minʼtɫcF(bio)(zhn)Һcԇ(yn)ͬr(sh)ͬ̎(du)ȡ(bio)(zhn)Һ1 mLF0.01%2 mL0.02%………
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