Estándares de Referencia

Reagecon

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Sodium sulfure solution (REA1083901)

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Buffer standard 9.18 @25°C (REA109180)

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Buffer Solution pH 9.20 @20C (REA10920)

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Tris(hydroymethyl) aminomethane solution (REA1094201)

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Buffer pH 10.00 (Blue) ± 0.01 @25°C (REA10C65)

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Buffer solution pH11.00 ± 0.05 @25°C (REA111025)

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Buffer standard 12.627 @ 20°C (REA112627)

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Ammonium chloride buffer solution pH 10.0 (REA4007300)

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Ammonium standard solution (100 ppm NH4) (REA5000300C)

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Arsenic standard solution (10 ppm As) (REA5000500C)

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