Nanogold solution and method for detecting Co<2+> by using same

Nanogold solution and method for detecting Co<2+> by using same

  • CN 102,416,482 A
  • Filed: 11/16/2011
  • Published: 04/18/2012
  • Est. Priority Date: 11/16/2011
  • Status: Active Grant
First Claim
Patent Images

1. nano-Au solution, it is characterized in that:

  • described nano-Au solution prepares with following step;

    (1) being the golden nanometer particle source with golden salt, is surfactant with the quaternary ammonium salt, and sodium borohydride, potassium borohydride or ascorbic acid are reducing agent;

    Get a certain amount of golden salting liquid, add surfactant, stir the back and add reducing agent, make the nm of gold mixed solution;

    The molecular formula of described quaternary ammonium salt is CH 3(CH 2) mNX (CH 3) n(CH 2) p(C 6H 5) q, m=7~

    15 wherein, n=2 or 3, p=0 or 1, q=0 or 1, X=Cl, Br, I or F;

    (2) in described nm of gold mixed solution, add and contain sulfydryl (SH) and carboxyl (compound soluble in water COOH);

    PH value with the mixed solution that obtains transfers to 5.0~

    11.0 then, obtains containing the nano-Au solution of the ion cluster bunch modification of element sulphur and carbon oxygen groups (O=C=O) after sealing is stirred.

View all claims
    ×
    ×

    Thank you for your feedback

    ×
    ×