[Bush]

[ b]
As I know, the purity silicone oil's FT-IR spectrum peak is :800, 1020,1090,1260, but when i test some materials, I encountered some difficult situation, the wave peak is like the follow:
A: 809, 1028, 1099, 1260
B  800,  1033, 1101, 1260
C, 801   1041   110 1  1248
All samples A, B, C, is intermixture, can i identify sample A, B,C still contain silicone oil?? or silicone?

how can i use FT-IR to identify the primary amide?
does it's feature peak which at high wave number is only 3359+-10 and 3190 +-10 the double peak?

the same, How can i identify the DOp, only with FT-IR?

any response will be very appreciated!
thank you very much!
it's my mail box: tsyj12@126.com [/b]