25 by colourimetry
; HMC by XRF Finland 1028 4 acid/AAS Finland not reported XRF Finland >64 not reported Canada 550 sintering/colourimetry
Canada 1220 fusion/colourimetry
Canada >2000 fusion/colourimetry
Canada clay+silt not analyzed fusion/colourimetry
Ireland 80 not reported Sweden not reported Canada >250 not reported Canada not reported not reported Canada 1600 colourimetry
Canada 75 INAA Canada 816 borate fusion/ICP-MS Country Source of information Finland Aario and Pueraniemi (1992) Sweden Brundin and Bergstrom (1977) Canada Coker et al.
has been used to provide quantitative measurements of skin colour.
5 mg/kg more P than colourimetry
for these 2 extraction methods, respectively.
The most suitable images for HDR display and distribution will be those with highest dynamic range and natural colourimetry
45 [micro]m), and determination of molybdate reactive P by colourimetry
(Murphy and Riley 1962).
The total nitrogen concentration was determined by the Kjeldahl method, total phosphorus was determined by sulfuric digestion and colourimetry
, total potassium was determined by flame photometry and calcium and magnesium were determined by atomic absorption (Embrapa 2011).
3 Nottingham and Derby Optical, Wolloughby Hall, Nottingham University Park Campus, Nottingham, Visual stress and colourimetry
However, in most previous studies, the concentration of condensed P species in solution was determined using colourimetry
, with the polyphosphate concentration calculated as the difference between total P and initial OR Due to the digestion procedure required to determine total P, some weakly adsorbed and organic P species would be included in the solution P measurement, resulting in an underestimation of P sorption.
4]) and the concentration of orthophosphate in the acid extracts was determined by colourimetry
according to the method of Murphy and Riley (1962).
4]C1 and analysis by inductively coupled plasma-optical emission spectrometry (ICP-OES), and concentration of chlorides and nitrates in aqueous solution by colourimetry
The NMR-detected P concentrations were consistent with P concentrations determined by colourimetry
and ICP-OES analysis for all NaOH-EDTA extracts.
201[micro]m before determination of 31p by malachite green colourimetry
The sodium bicarbonate method and Mo-Sb colourimetry
were used to measure soil available P (Bao 1999).