Chemical apparatus and process disinfecting – deodorizing – preser – Analyzer – structured indicator – or manipulative laboratory... – Calorimeter
436 74, 436 84, G01N 2175, G01N 3320
A dry multilayer analytical element for determination of total ionic iron is disclosed. The element includes a dye which complexes with Fe.sup.+2. The dye has the structure ##STR1## R.sup.1 represents an electron donating group; or R.sup.1, together with the carbon to which it is attached, represents sufficient atoms to form a cyclic electron donating group fused to the phenyl group to which R.sup.1 is attached;
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Mauck John C.
Warren, III Harold C.
Alexander Lyle Alfandary
Eastman Kodak Company
Everett John R.
Richman Barry S.
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