A scheme of semi-micro analysis for the major elements in clay minerals, based on modifications to conventional methods of silicate analysis
Keyword(s):
A scheme is presented for the semi-micro analysis for the major elements in clay minerals, based mainly on improvements to conventional colorimetric methods. Silica and alumina are determined after fusing a 50-mg sample with sodium hydroxide. Titanium, total iron, calcium, magnesium, phosphorus and manganese are determined colorimetrically on a hydrofluoric-sulphuric acid digest of a 50-mg sample; sodium and potassium are determined flame photometrically on the same digest. Ferrous iron is determined separately. Additional methods for the determination of total water, total sulphur and fluorine are indicated.
1989 ◽
Vol 335
(8)
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pp. 975-979
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1994 ◽
Vol 350
(6)
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pp. 359-364
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2010 ◽
Vol 93
(6)
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pp. 1888-1896
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2009 ◽
Vol 19
(8)
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pp. 431-436
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1991 ◽
Vol 6
(3)
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pp. 233
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2011 ◽
Vol 356-360
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pp. 1796-1800