not analyzed; (a) the sum includes also 3,5-DMP and 2,5-DMP; (b) additionally 0-16 mg/l of 2,6-DMP, 15-60 mg/l of 2,3,4-trimethylphenol, 0-10 mg/l of 2,4-dibutylphenol, 24-243 mg/l of pyrocatechol
39 g/L for the benzethonium chloride, biuret, modified biuret, and pyrocatechol
violet, respectively, and for [lambda], the TUP results were 0.
It may also act as a mild reducing agent due to its pyrocatechol
Menzies NW, Kerven GL, Bell LC, Edwards DG (1992) Determination of total aluminium in soil solution using pyrocatechol
violet, lanthanum and iron to discriminate against micro-particulates and organic ligands.
Wilson AD, Sergeant GA (1963) The colorimetric determination of aluminium in minerals by pyrocatechol
30% of that measured by the more aggressive reagent pyrocatechol
violet (Powell 1998).
violet (PCV) and aluminon (60 s) (Kerven et al.
2] shaken end-over-end for 2 h were analysed for Al using pyrocatechol
violet based on the method of Dougan and Wilson (1974) and for Ca, Mg, K, and Na by flame atomic absorption spectrometry after dilution with 1000 ppm Cs as CsCl in 0.
Royset O (1986) Flow-injection spectrophotometric determination of aluminium in water with pyrocatechol
0, 24 h) by a 30-s reaction with the colorimetric reagent pyrocatechol
violet, PCV, in a flow injection analysis (FIA) manifold (Royset 1986).