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Table 8 Results of an 'accuracy check' of the proposed method with standard reference material: NIST SRM 89 Lead Barium Glass

From: Stepwise complexometric determination of aluminium, titanium and iron concentrations in silica sand and allied materials

Constituents

Certified Reference results

Set-I, % w/w, Results obtained using the proposed method

Set-II, % w/w Results obtained by complexometry5 for Al, and colorimetry6 for Fe and Ti

Al2O3

0.18

0.18 ± 0.03

0.054 ± 0.05

Fe2O3

0.049

0.036 ± 0.004

0.044 ± 0.005

TiO2

0.01

0.024 ± 0.006

0.026 ± 0.006

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BMC Chemistry

ISSN: 2661-801X

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