专利检索 ap:("ANDONG NATIONAL UNIVERSITY INDUSTRY—ACADEMIC COOPERATION FOUNDATION") AND inv:"Keon Sang Ryoo" 第 1 页

1.

发明授权
Solution composition for extracting available phosphate, available silicate and cation exchange in soil 有权

公开(公告)号：US11604124B2

公开(公告)日：2023-03-14

申请号：US17133034

申请日：2020-12-23

申请人： ANDONG NATIONAL UNIVERSITY INDUSTRY—ACADEMIC COOPERATION FOUNDATION

发明人： Keon Sang Ryoo

IPC分类号： G01N1/40 , G01N21/25 , G01N33/24 , G01N31/22

摘要： Disclosed is a leaching solution composition for extracting available phosphate in soil, the composition including 100 parts by weight of a leaching solution containing acetic acid, lactic acid, ammonium fluoride, ammonium sulfate, and sodium hydroxide, of which the weights are 110% of the weights of constituent ingredients of a leaching solution for extracting available phosphate in soil, used in the Lancaster method and 0.001 parts by weight of a bromocresol green indicator.

2.

发明申请
SOLUTION COMPOSITION FOR EXTRACTING AVAILABLE PHOSPHATE, AVAILABLE SILICATE AND CATION EXCHANGE IN SOIL 有权

公开(公告)号：US20210199548A1

公开(公告)日：2021-07-01

申请号：US17133034

申请日：2020-12-23

申请人： ANDONG NATIONAL UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION

发明人： Keon Sang Ryoo

IPC分类号： G01N1/40 , G01N21/25 , G01N33/24

摘要： Disclosed is a leaching solution composition for extracting available phosphate in soil, the composition including 100 parts by weight of a leaching solution containing acetic acid, lactic acid, ammonium fluoride, ammonium sulfate, and sodium hydroxide, of which the weights are 110% of the weights of constituent ingredients of a leaching solution for extracting available phosphate in soil, used in the Lancaster method and 0.001 parts by weight of a bromocresol green indicator.