Carrier agent used in gas analysis by chromatagraph for carrying of gas sample in adsorption coloumn is generally
A. acetylene
B. helium
C. nitrogen
D. either B or C
Answer: Option D
Related Questions on Metallurgical Analysis
A. combustion
B. gravimetric
C. volumetric
D. both B and C
Temperature used in the determination of volatile matter of coal is . . . . . . . . °C.
A. 750
B. 850
C. 950
D. 1050
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