| 发明名称 |
High purity amino-organosulfonic acid zwitterionic compositions |
| 摘要 |
This invention relates to high purity hydrogen ion buffers and in particular amino-organosulfonic acid zwitterionic compositions having low metal content. The concentration of any single metal in the composition is no greater than about 500 ppb, and ideally is less than about 20 ppb.
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| 申请公布号 |
US2004044208(A1) |
申请公布日期 |
2004.03.04 |
| 申请号 |
US20020231318 |
申请日期 |
2002.08.29 |
| 申请人 |
BUFFERS & BIOCHEMICALS CORP |
发明人 |
BOW DAVID;CARROLL GLENN THOMAS |
| 分类号 |
C07C309/14;(IPC1-7):C07F9/70;C07F1/08;C07F3/08;C07F9/90;C07F9/94;C07F15/04 |
主分类号 |
C07C309/14 |
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