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Q |
wᱽֵĜyЧҺɫV |
(yng)÷ |
øЧҺɫVyᱽwᱽֵĺ mᱽw |
ԭ |
ԇƷ(jng)̎ϡጳһȵҺMЧҺɫVxMɫVxՙzyڲL270nm̎zyᱽֵֵӋ京 |
ԇ |
1. ״ɫV) 2. 0.1mol/L@_Һ7.7g@800mLˮñ{(dio)(ji)pH3.3ˮϡ1000mL 3. 2cҺ 4. 4%Һ |
xO(sh)䣺 |
1. x 1.1 ЧҺɫVx 1.2 ɫV ʮIϹz䄩Փ唵(sh)ᱽַӋ㑪(yng) 2000 1.3 ՙzy 2. ɫVl 2.1 ࣺ״0.1mol/L@_Һ= 65 35 2.2 zyL270nm 2.3 أҜ |
ԇƂ䣺 |
1. ƷҺƂ ȡᱽmܷQӼ״ܽⲢϡጳÿ1mLмs0.4mgҺ 2. ԇƷҺƂ ȡƷmϾܷQȡmsஔ(dng)ᱽ20mg)50 mLƿˮ20mLᱽܽ2cҺ2.5mLu1ɰɫҺ4%Һ10mLʹʧˮϡ̶uV^ȡm(x)VҺ |
E |
քeȡƷҺcԇƷҺ10L עЧҺɫVxՙzyڲL270nm̎yᱽֵֵӋ京 |
īI |
A͇ˎ䣬ˎίTW(xu)I(y)磬2005棬һp875 |