Q
             a(chn)(f)wAĜy(c)ֹ⡭" />
W(wng)վ
t(y)
ˎ
o(h)ʿ
l(wi)Y
߼(j)šQ
סԺt(y)
Ft(y)
t(y)W(xu)
t(y)W(xu)Փ
t(y)W(xu)(hu)h
ԇ
W(wng)У
Փ
Ƹ
¸
W(wng)վ؈D
F(xin)ڵλã t(y)W(xu)ȫھ > ˎW(xu)Փ > ˎ > :a(chn)(f)wAĜy(c)ֹȷ

a(chn)(f)wAĜy(c)ֹȷ

t(y)ˎ(sh)(j) ˎW(xu)Փ a(chn)(f)wAĜy(c)ֹȷ
Q
a(chn)(f)wAĜy(c)ֹȷ
(yng)÷

÷ֹȷy(c)a(chn)DwA}ˮKAӋ(j))

mгˎa(chn)Dw

ԭ

ԇƷ(jng)Ҵ•̎Һˮԡܼ0.1mol/L}ҺʹܽõƳɹԇҺԇƷҺc(du)ƷҺ(jng)̎-ҊֹȷڲL(zhng)525nm̎քey(c)նȣÿհҺȷքepȥ(du)ƷcԇƷӋ(j)ÿA}ˮKAӛ3.0mg

ԇ

1. 0.1mol/L}Һ

2. 2%t@Һ

xO(sh)䣺

ҊֹӋ(j)

ԇƂ䣺

1. (du)ƷҺƂ

ܷQȡ}ˮKA(du)Ʒm0.1mol/L}ҺƳÿ1mL1mgҺ

2. ԇƷҺƂ

ȡb(xing)ƒ(ni)mм(x)ȡs12gܷQþFƿܼҴ50mL•̎30犺ȡm(x)VҺ25mL50mLУˮԡܼ0.1mol/L}Һ10mLʹܽ

עۙ-c_ҺpH 4.0)

Һȡۙ21goˮۙ19.2gˮʹܽ1000mLñ(ni)

Һȡc71.63gˮʹܽ1000mL

ȡҺ61.15mLcҺ38.55mL

עܷQȡϵָQȡ(yng)(zhn)_Qȡǧ֮һȡϵָȡweĜ(zhn)_ȑ(yng)χ(gu)Ҙ(bio)(zhn)Ќ(du)ԓweҺܵľҪ

E

ȡ ԇƷҺc(du)ƷҺӻ̿0.5gˮԡϼӟ1裬V^VҺքe25mLƿ0.1mol/L}Һ10mLִϴ͞VϴҺͬһƿȡ0.1mol/L}Һ20mLһ25mLƿհҺܼƵ2%t@Һ3mL, u 0.1mol/L}Һϡ̶ȣuڱԡз1Сr(sh)øVV^ȡm(x)VҺ0.1mol/L}Һհ-ҊֹȷڲL(zhng)525nm̎քey(c)նȣÿհҺȷքepȥ(du)ƷcԇƷӋ(j)㣬

עֹȷ(yng)ƹԇƷͬ܄錦(du)գ1cmʯӢճնIJL(zhng)y(c)L(zhng)һ㹩ԇƷնx(sh)ڣ..֮g`^СxĪMpȑ(yng)СڹԇƷՎİ댒ȣty(c)õնƫMpȵx񣬑(yng)Ԝp٪Mpȕr(sh)ԇƷնȲӞ(zhn)ճغ܄пհ˜y(c)ԇƷնȺ(yng)pȥհx(sh)Ӌ(j)㺬

īI(xin)

A񹲺͇(gu)ˎ(gu)ˎίT(hu)W(xu)I(y)2005һp.446

...
P(gun)҂ - “(lin)ϵ҂ -(qun) -\(chng)ƸӢ - W(wng)վ؈D - t(y)W(xu)Փ - t(y)W(xu) - W(wng)j(lu)n -
t(y)W(xu)ȫھ (qun)© CopyRight 2006-2010, MED126.COM, All Rights Reserved
I(lng)CP06007007̖(ho)
ٶȴ“(lin)J(rn)CGɫ(hu)TžW(wng)վ оW(wng)(yn)C