• 专利标题:   Graphene aerogel adsorbent used as solid phase extraction adsorbent for detecting phenylurea herbicides in water comprises graphene and triethylenetetramine.
  • 专利号:   CN110404519-A
  • 发明人:   SHI S, GE S, JIANG S, LIANG C
  • 专利权人:   ANHUI JUKE GRAPHENE TECHNOLOGY CO LTD
  • 国际专利分类:   B01J020/20, B01J020/22, B01J020/28, B01J020/281, B01J020/30, G01N030/00
  • 专利详细信息:   CN110404519-A 05 Nov 2019 B01J-020/281 201992 Pages: 8 Chinese
  • 申请详细信息:   CN110404519-A CN10833097 04 Sep 2019
  • 优先权号:   CN10833097

▎ 摘  要

NOVELTY - A graphene aerogel adsorbent comprises 0.5-20 pts. wt. graphene and 50-100 pts. wt. triethylenetetramine. USE - The graphene aerogel adsorbent is used as solid phase extraction adsorbent for detecting phenylurea herbicides in water (claimed). ADVANTAGE - The adsorbent solves high detection limit and poor reusability. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of the aerogel adsorbent comprising y oxidizing graphite powder by improved Hummers method, adding to water, and ultrasonically treating in water; adding triethylenetetramine and hydrothermal reacting; putting hydrogel in dialysate and dialyzing; and freezing, thawing, and air-drying.