2011ҩѧרҵϰժҪעƱ
Դ233У 2011422
: עƱ̣עʹעҺ˹עҺĹ⣬ע飬עľ
ߡעľ
2%³עҺ
άCעҺ
Ҫ
1.˵иֵ
2.ƱǷͨ壬Ϊʲôͨ?Ϊʲô?
3.ҺpHΪֵʱ?
4.ƼӦѡʽ
5.Ƿƴ?Ϊʲô?
:άC 104g ̼ 49.0g EDTA-2Na 0.05g 2gעˮad1000ml
Ʒ:У80%עˮ̼ͨͣάCִܽλ̼ƣʹȫܽ⣬EDTA-2NaƣpH6.0-6.2,Ӷ̼͵עˮô۲©ĤˣҺ̼ͨڶ̼¹⡣100ͨ15
ע⣺άCϩʽṹǿԡ̼ƣʹάCֵкͳΣԱʹͬʱ̼PHãǿƷȶԡ
άCˮҺӴԶ⿹ѪᡣƷֽɻɫ
Ӱ챾ƷȶԵػпеҺPHͽӣرͭӡϲȡ塢ҩҺPHӿϼȴʩ
ܱƷûؼǿѪԭϵ̼ҲҪԭҪϸơ
¶Ӱ챾Ʒȶԡ10015
ɵעҺ
άCעҺ
A.
B.̼
C.̼
D.
E.עˮ
1.õA
2.ܽԭϵE
3.ԽõD
4.άCֳΣֲ̼õC
5.ڳȥҩҺ곿ռB
йάCעҺ
A.̼ڵڵ
B.ڵpH
C.Ϊϼ
D.ڶ̼¹
E.Ʒɲ115桢30minѹ
𰸣ABE
Ƽ
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