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Record 1 of 3
| Record #: | 219 |
| Class ID: | 3.24 |
| Class Name: | polyether |
| Polymer: | poly(propylene oxide) |
| Matrix: | dithranol (1143-38-0) |
| Salt: | sodium iodide |
| Solvent: | tetrahydrofuran |
| Recipe | Matrix 2,5-dihydroxybenzoic acid (DHBA) or dithranol in THF was mixed with NaI (aqueous solution), followed by mixing with PPO (THF solution) before this mixture was added to the target. |
Chakraborty, D.; Rodriguez, A.; Chen, E.Y.X., Catalytic Ring-Opening Polymerization of Propylene Oxide by Organoborane and Aluminum Lewis Acids, Macromolecules, 36, 15, 2003, 5470-5481.
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Record 2 of 3
| Record #: | 132 |
| Class ID: | 3.24 |
| Class Name: | polyether |
| Polymer: | poly(propylene oxide) |
| Matrix: | dithranol (1143-38-0) |
| Salt: | lithium trifluoroacetate |
| Solvent: | hexane/isopropyl alcohol |
| Recipe | The eluate stream coming from SEC/LC-CC was deposited dropwise on MALDI-TOF targets. The matrix was added coaxially to the eluate stream. |
Keil, C.; Esser, E.; Pasch, H., Matrix-Assisted Laser Desorption/Ionization Mass Spectrometry of Synthetic Polymers, 5 - Analysis of Poly(Propylene Oxide)s by Coupled Liquid Chromatography at the Critical Point of Adsorption and MALDI-TOF Mass Spectrometry, Macromolecular Materials and Engineering, 286, 3, 2001, 161-167.
doi:10.1002/1439-2054(20010301)286:3<161::AID-MAME161>3.0.CO;2-Z
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Record 3 of 3
| Record #: | 176 |
| Class ID: | 3.24 |
| Class Name: | polyether |
| Polymer: | poly(propylene oxide) |
| Matrix: | 2,5-dihydroxybenzoic acid (490-79-9) |
| Salt: | N/A |
| Solvent: | ethanol |
| Recipe | The polymer samples were prepared for MALDI mass spectrometry by mixing a 1-M matrix solution in ethanol with an approximately 10-g/L analyte solution in ethanol yielding a molar ratio matrix:analyte = 1000:1. The resulting mixture was electrosprayed onto a stainless steel probe tip. Approximately 0.1mL analyte/matrix is consumed during sample deposition. |
Van Rooij, G.J.; Boon, J.J.; Duursma, M.C.; Heeren, R.M.A., Probing Mass Discriminations and Mass Shifts in the Itms Mass Spectra of Externally Generated MALDI Ions with Synthetic Polymers, International Journal of Mass Spectrometry, 221, 3, 2002, 191-207.
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