INDICATOR SENSITIVE MATERIAL FOR DETERMINING MICRO-AMOUNTS OF SUBSTANCES Russian patent published in 2006 - IPC G01N31/22 

FIELD: analytical chemistry, possible use for operative control over concentration of admixtures in liquids and gases both under laboratory and field conditions.

SUBSTANCE: in indicating sensitive material hard polymer carrier is made of transparent polymer material containing functional groups, providing inter-molecular interactions with reagent and/or determined substance. Functional groups are selected from row: amide - CONH₂, carboxyl - COOH, hydroxyl - OH, nitrile - CN, complex ether - COO, carbonyl - >C=Output, ether -O-, sulfur -containing -SH, -S-,-S=C,-SO₃H, -SCN, halogen-containing -CF₃, -F, -Cl, -I, organic and non-organic salt-like - (alkyl)acrylates of metals, carboxylates of metals.

EFFECT: indicator sensitive material is simple to manufacture, is capable of reacting to broad range of analyzed substances, and also makes it possible to determine analyzed substances with increased precision at level of maximal allowed and dangerous concentrations in laboratory practice and field conditions in different objects with simplified visual and photo-metric estimate.

1 cl, 10 ex, 3 tbl