Abstract
A novel water-soluble fluorescent probe, monosodium 7-(4,6-dichloro-1,3,5-triazinylamino)-1,3-naphthalenedisulfonic acid (DTND), was synthesized by reacting cyanuric chloride with 7-amino-1,3-naphthalenedisulfonic acid monopotassium salt at 0–5 °C. This new reagent was used for the determination of methylamine. The linear range is 3×10–6–2×10–4 mol L–1 with a detection limit (S/N=3) of 7.2×10–8 mol L–1, and the relative S.D. is 1.3% for ten replicate determinations of 1×10–5 mol L–1 CH3NH2. Common species in the aqueous environment have no or only slight influence on the determination. The method can be used to determine methylamine in real water samples.
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Gu, H., Ma, HM. & Liang, SC. A novel water-soluble fluorescent probe for the determination of methylamine. Fresenius J Anal Chem 371, 570–573 (2001). https://doi.org/10.1007/s002160101034
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DOI: https://doi.org/10.1007/s002160101034