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In-Depth Information
Fig. 2.16
Chromatograms of reaction mixtures of Cr(III) and Cr(VI) Conditions
for high performance liquid chromatography: column RP-8, mobile
phase; methanol-water (65:35); flow rate, 3cm
3
min
−1
detection at
254nm: (A) 10.0µg Cr(III), pH 4.0; (B) 10µ.g Cr(III), pH 5.8; (C)
10.0µg Cr(IV), pH 4.0; (D) 10.0µg Cr(VI)+10µg Cr(III) pH 4.0.1,
unidentified disulphide; 2, Cr(S
2
CH (C
2
H
5
)
2
)
2
(OS
2
CN(C
2
H
5
)
2
),
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