Naslov
Microdetection of silver with p- dimethylaminobenzylidene-rhodanine by the "resin spot test" technique

Autori
Grdinić, Vladimir ; Luterotti, Svjetlana

Izvornik
Fresenius' Zeitschrift für analytische Chemie (0016-1152) 308 (1981); 461-461

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
silver ; microdetection ; p-dimethylaminobenzylidene-rhodanine ; resin spot test

Sažetak
A sensitive and selective method for the microdetection of silver has been worked out, which can be applied to solutions of various kinds. The well-known "resin spot test" technique is applied using p-dimethylaminobenzylidene- rhodanine as reagent. Among 11 resins tested only the hydroxide form of Amberlite IR-45 gave satisfactory results. The limits of detection, of concentration, of dilution and the exponent of sensitivity (pD) are as follows: 6.04x10^-8 (g), 2.08x10^-6 (g/ml), 0.48x10^6 (ml/g), 5.68. Interferences of foreign ions were examined and results are given in Table 1. Pd(II) and Pt(IV) react in the same way as silver ; limits of detection are 3.0x10^-6 g for Pd and 1.45x10^-6 g for Pt. The tolerance limits for oxidizing and complexing agents are listed in Table 2.

Izvorni jezik
Engleski

Znanstvena područja
Kemija

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