A Study of the Use of 2-Nitroso-1-Naphthol as a Trace Metal Detection Reagent

Abstract

A 0.5% 2-nitroso-1-naphthol acetone solution was studied for its potential as a trace metal detection reagent. A metal object must be held for approximately 1.5 min for satisfactory color and pattern formation to be observed by this procedure. Metal ions transferred through a brief period of holding can be detected within 3 h. Best results were obtained on individuals with high levels of perspiration. That more than one metallic object was held can be revealed if the objects are made of different metals or have distinct shapes or sizes.

Oxidative DNA Damage Induced by a Metabolite of 2–Naphthylamine, a Smoking‐related Bladder Carcinogen

“…This is supported by the report that NO-naphthol chelates metal ions, such as iron, copper and zinc. 32) Based on these results and references, we propose the following possible mechanism (Fig. 6).…”

Pharmaceuticals and related drugs

“…The results are a chromatogram of the volatile components and a pyrogram of the nonvolatile polymeric component (466). A metal object held for approximately 1.5 min could be detected (470). A combination of several techniques including, EDX, TLC, and HPLC were used to differentiate lipstick stains.…”

“…A 0.5%, 2-nitroso-l-naphthol solution was successfully utilized to detect trace metals on hands. A metal object held for approximately 1.5 min could be detected (470). NAA was employed to measure trace levels of antimony, silver, cooper, and arsenic in bullet lead for comparison purposes.…”

Gun‐Handling Tests

“…The use of 2 -nitroso -1 -naphthol (Kokocinski, Brundage and Nicol, 1980 ) has been suggested as an alternative to ferrozine, but this gives coloured complexes with iron, copper, zinc and silver. As a result, it has gained little support.…”