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Sigma-Aldrich offers a large selection of high purity acids, bases and salts to control analyte ionization and improve LC-MS signal.
It is common practice in LC-MS to add certain chemicals to the mobile phase or introcuce them post-column prior to the interface to influence analyte ionization. Most often, an improvement in the analyte signal is the goal. However, some additives may be used to suppress unwanted signals or selectively enhance the signal of particular compounds in a mixture, for example glycosidic species in a mixture of peptides.
Sigma-Aldrich, a leading supplier of chemicals for analytical applications, offers a wide range of high purity additives for LC-MS applications in addition to our pure CHROMASOLV® solvents and ready-to-use blends. Our offering includes the most commonly used acids, bases, volatile salts and a sodium source (see Table). All are of high purity, usually puriss p.a., and are tested for LC-MS application.
Product List...... LC-MS CHROMASOLV® Mobile Phase Additives
| Catalog No. |
Description |
Package Size |
Add to Cart
|
| 40967 |
Trifluoroacetic acid, puriss p.a., eluent additive for LC-MS |
HDPE bottle |
|
| 56302 |
Formic acid, puriss p.a., eluent additive for LC-MS |
HDPE bottle |
|
| 49199 |
Acetic acid, puriss p.a., eluent additive for LC-MS |
HDPE bottle |
|
| 49916 |
Propionic acid, puriss p.a., eluent additive for LC-MS |
HDPE bottle |
|
| 55674 |
Ammonium formate, puriss p.a., eluent additive for LC-MS |
HDPE bottle |
|
| 49638 |
Ammonium acetate, puriss p.a., eluent additive for LC-MS |
HDPE bottle |
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| 61333 |
Sodium citrate tribasic dihydrate, puriss p.a., eluent additive for LC-MS |
HDPE bottle |
|
| 40867 |
Ammonium bicarbonate, puriss p.a., eluent additive for LC-MS |
HDPE bottle |
|
| 44273 |
Ammonium hydroxide solution 25%, puriss p.a., eluent additive for LC-MS |
HDPE bottle |
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| 65897 |
Triethylamine, puriss p.a., eluent additive for LC-MS |
HDPE bottle |
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LC Solvents
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