Method for quantitatively analyzing substances containing...

Details Method for quantitatively analyzing substances containing... Method for quantitatively analyzing substances containing...

G - Physics

01

N

150/8

G01N 23/00 (2006.01) G01N 30/00 (2006.01) G01N 31/12 (2006.01)

Patent

CA 1056704

ABSTRACT An improved method for quantitatively analyzing substances containing elements other than carbon, hydrogen and oxygen by (1) adsorbing such substances on a particu- late, substantially dust and contaminant free carbonized product prepared by (A) first partially dehydrochlorinating a normally crystalline vinylidene chloride polymer at temperatures below the melting point of such polymer to an extent of at least about 5 percent of theoretical HCl loss, then (B) completing the dehydrochlorination of such material, in the substantial absence of oxygen, by heating the material to carbonizing temperatures of from about 600°C to about 1200°C; then (2) analyzing the substance adsorbed on such carbonized product.

254029

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