呵呵，英语果然是没过4级的水平啊，
请问老兄用上面的条件做VGA的时候，效果怎样？

大学没学英语，四级没过...
10%的KI会不会有I的析出？
做的曲线好吗？

Yes, I just double checked with certificate of analysis.
The lamp working current is: 10 mA, Arsenic lamp from Varian,part#5610100300. It is a certified lamp, Serial No.06L14**.
Recommended working current: 10 mA, Maximum current : 12 mA.

For the Potassium iodide (KI), I tried several concentrations range from (5%, 10%, 20%, weigh 5-20 g KI in 100 ml H2O) before. Now I chose the 10% KI.

This method was developed by myself for the Arsenic(As)/Antimony (Sb) testing of petfood in our lab last year. I used the EPA Method 7061A and 7062 as reference. pls see the attachment for more details.

At last, I want to emphasis one point: Different instruments have specific parameters. So my testing parameters may not match others' testing requirements.

best

[~81448~]