The use of naphthalene derivatives in inorganic analysis

Inorganic Microchemistry

“…Studies of anthraquinone derivatives as reagents for boric acid have been described (98). Substituted naphthalenes have been investigated for the fluorimetric determination of tin (13), and new reagents for the detection of technitium (84) have been proposed. A substituted chromotropic acid (55) has been suggested as a reagent for titanium, and a sensitive and selective procedure for the identification of scandium ( 200) is based on the reaction with carminic acid in the presence of BaS04 carrier.…”

Fluorometric Analysis

“…The widely distributed blue fluorescence between 430 and 480 dim which is found in many minerals and commercial chemicals has been shown to be caused by traces of organic materials probably from atmospheric dust (289). Holzbecher (140) has made metal chelates with 12 salicylaldehyde condensation products and determined some factors influencing the fluorescence intensity. He also studied the metal chelates of the condensation products of resorcylaldehyde with hydrazine and aromatic amines with 11 metal ions (141)• The sensitivity of the fluorescence reactions of quercetin with salts of Al, Be, Ga, In, Y, La, Mg, and Zn has been determined, and their optimum pH ranges have been established (179).…”

“…An assay for gibberellic acid is based on its blue fluorescence after treatment with H2SO4 (362). Traces of the phosphorothioate pesticides known as Bayer 21/199 and Bayer 22,408 may be determined in biological materials, after chromatographic separations, by fluorometry (12,120). Transmission of the alkaloid sanguinarine in milk is detectable by the green fluorescence of a metabolic product (128).…”

“…Esikov and Men'shikov (98) claim measurement in the order of 5 X [10][11][12][13][14] amp. per division for their solution fluorometer.…”