Patent ID: 8034624
Filing Date: 2011-10-11
Classification: G01N,Y10T

Abstract:
1. A sampling device for analysis of isocyanate, aminoisocyanate, isothiocyanate, or amine present in an air flow intended to pass through the sampling device, wherein the sampling device comprises: a) an adsorption device adapted for the passage of the air flow and provided with a sorbent surface impregnated with at least one reagent in the form of: wherein R is H, CH 3 , C 2 H 5 , C 3 H 7 , C 4 H 9 , C 5 H 11 , C 6 H 14 , C 6 H 5 , or C 10 H 8 ; wherein X 1 , X 2 , X 3 , and X 4 are similar or nonsimilar and selected from R, OH, OR, COR, CONHR, CO 2 R, and OCOR; wherein k is one or more of H, SO 3 H, SO 3 Me + (wherein Me + is Li + , Na + , or K + ), OH, OR, R, COR, CO 2 R, CO 2 H, OCOR, NO 2 , or SR with at least one color developing agent, wherein said sorbent surface is not a filter; b) a light source for emission of light onto the sorbent surface; and c) a detector for detection of reflected light from the sorbent surface.