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Presep® PolyChelate

SPE Column for Metal Scavenger

Presep® PolyChelate is a SPE cartridge with a unique chelate resin modified with carboxymethylated polyethylenimine. It can be used for extraction and concentration of trace metals in sea, river, and waste waters, and also biological samples. Additionally, it is suitable for pretreatment such as removing noise or matrices for measurement of metal elements by AA or ICP spectrometry.

Features

  • Capable of trapping several metal elements.
  • Much more effectivel than an ordinal IDA (Iminodiacetic acid) type chelate resin.
  • Metal oxo-acids (Mo, V, and W) can be trapped under acidic or neutral conditions.

Effect of Recovery on pH

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(Data was provided from Prof. Dr. Kagaya, Toyama University.)
Since these data show an example of the actual use, no warranty is given as to the specification of the product.
Sample volume : 100 mL
Each element : 10 μg
Flow rate : 3mL/min
Elution : 3M HNO3, 3 mL
Measurement :PerkinElmer Optima 3000 DV ICP-AES, cross-flow nebulizer and a Scott-type spray chamber

Example of Procedure

  • Column conditioning

    Column: Presep® PolyChelate

    1. CH3OH : 5 mL
    2. 3 mol/L HNO3 :10 mL
    3. H2O :20 mL
    4. 0.1 mol/L CH3COONH4 :10 mL

    Solid phase extraction

    pH adjustment of sample

    1. 0.1 mol/L CH3COONH4: 5 mL, sample: 100 mL
    2. pH was adjusted by HNO3 or NH3 solution.

    1) sample loading: ~500 mL (flow: 3~10 mL/min.)
    2) washing by H2O:20 mL
    3) extraction by 1~3 mol/L HNO3: 3~5 mL
    4) measurement by ICP-AES, ICP-MS, AAS, etc.

  • Elements Treated wastewater*1 (n=3) Surface seawater*2 (n=3)
    Found/μg/L Recovery*3/% Found/μg/L Recovery*3/%
    Cd 0.2±0.02 93±2.9 (0.03±0.004) 96±1.7
    Co <0.033 92±3.7 (0.02±0.012) 96±1.5
    Cu 1.1±0.13 104±3.5 0.77±0.017 112±3.2
    Fe 33±3.3 114±13.8 1.3±0.05 94±3.2
    Mn 871±75 64±9.0 Not measure Not measure
    Mo 458±9.3 98±1.7 7.4±0.07 100±4.5
    Ni 11±0.2 101±4.9 0.46±0.017 100±1.8
    Pb <0.22 94±2.7 0.09±0.052 104±2.0
    V <0.22 92±3.1 1.3±0.05 96±2.5
    Zn 11±3.1 83±2.1 2.5±0.24 102±2.2

    *1 Sample volume, 200 mL; pH 5.5
    *2 Sample volume, 300 mL; pH 4.0
    *3 5 μg of each element was add to the solution

    reference
    1. Kagaya, S., Maeba, E., Inoue, Y., Kamichatani, W., Kajiwara, T., Yanai, H., Saito, M. and Tohda, K. : Talanta., 79, 146(2009).

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Product content may differ from the actual image due to minor specification changes etc.

Author: Y. Higai

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