Add time:07/27/2019         Source:sciencedirect.com

The determination of traces of fluoride by means of the molecular absorption of AlF volatilized in graphite cuvettes is described. An extraction method for separation and preconcentration of the fluoride has been developed, to avoid matrix effects. The fluoride is extracted with 10−3M triphenylantimony(V) dihydroxide in M1BK, and stripped with 0.025M barium hydroxide. The method is sensitive and specific for fluoride. The detection limit is about 0.3 ng of fluoride, and the fluoride content of 6 ml of 10−7M solution can be determined. The determination is possible in presence of various ions, but it is estimated that usage of trace matrix separation leads to a considerable improvement in the relative detection limits (by 2–3 orders of magnitude), levels as low as 0.01 ppm being detectable in some matrices.

We also recommend Trading Suppliers and Manufacturers of aluminium bromide dihydroxide (cas 15122-63-1). Pls Click Website Link as below: cas 15122-63-1 suppliers