负载水杨酸荧光酮-活性炭吸附富集-分光光度法测定水中痕量钒

Spectrophotometric Determination of Vanadium in Water Enriched by Activated Carbon Carring Salicylic Acid Fluorone

采用负载水杨酸荧光酮 -活性炭对水中的痕量钒 ( )进行预富集以分光光度法测定。探讨了活性炭吸附钒 ( )的吸附效果及有机试剂的影响和机理。10 0 mg活性炭负载水杨酸荧光酮后可以大大提高对钒 ( )的吸附能力 ,同时可消除干扰测定的金属离子。方法用于天然水样中痕量钒 (V)

Accumulation of vanadium(Ⅴ) was studied using activated carbon impregnated with SAF(salicylic acid fluorone). The optimal conditions were selected. The mechanism of adsorption of vanadium(Ⅴ) by activated carbon and the mechanism of the effect of SAF were also discussed. By this process, the adsorption capacity of activated carbon for vanadium(Ⅴ) was greatly improved ,and vanadium(Ⅴ) can be separated from many ions such as Fe 3+ ,Cu 2+ ,Co 2+ ,Ni 2+ ,Mn 2+ ,Hg 2+ ,Cd 2+ ,Zn 2+ ,Pb 2+ ,Sn 2+ ,Al 3+ ,As 3+ ,Sb 3+ ,Bi 3+ ,Ti(Ⅳ) etc. It was used to determine trace vanadium(Ⅴ) in natural water.