An Improved Method for the Determination
نویسنده
چکیده
A routine discrete sample method for the determination of soil 'available' phosphorus, using manual or automated colour complex preparation, is described. After extraction, orthophosphate is determined colorimetrically using a stable 12molybdoantimonylphosphate complex. This improved method gives results comparable to those obtained using the existing Dickman and Bray procedure. When used with a discrete sample automatic analyser system, a labour saving of about seven man-hours per 200 samples is effected. The development of this method and its adaptation for use with the LKB sample processor, together with the steps necessary to minimise adverse effects of sample carryover, are discussed.
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تاریخ انتشار 2009