이매스교육 및 공지사항
Common HPLC buffer (compatible LC/MS buffer) | ||||
Buffer |
pH range |
LC-MS compatible | ||
phosphate(pK1) |
1.1 |
– |
3.1 |
X |
phosphate(pK2) |
6.2 |
– |
8.2 |
X |
phosphate(pK3) |
11.3 |
– |
13.3 |
X |
acetate (ammonium acetate) |
3.8 |
– |
5.8 |
YES |
citrate(pK1) |
2.1 |
– |
4.1 |
X |
citrate(pK2) |
3.7 |
– |
5.7 |
X |
citrate(pK3) |
4.4 |
– |
6.4 |
X |
trifluoroacetic acid (0.1% v/v) |
2 |
YES | ||
phosphoric acid (0.1% v/v) |
2 |
X | ||
formic acid (0.1% v/v) |
2.7 |
YES | ||
ammonium formate |
2.7 |
– |
4.7 |
YES |
ammonium bicarbonate |
6.6 |
– |
8.6 |
YES |
borate |
8.3 |
– |
10.3 |
YES |
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( ) : for LC/MS, X : not compatible |
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