Matrix-assisted laser desorption/ ionizationtime-of-flight

Xu, S., Pan, C., Hu, L., Zhang, Y, Guo, Z., Li, X., Zou, H. Enzymatic reaction of the immobilized enzyme on porous silicon studied by matrix assisted laser desorption/ionizationtime of flight-mass spectrometry. Electrophoresis 2004, 25, 3669-3676. 

Mazzeo, M.F., Sorrentino, A., Gaita, M., Cacace, G., Di Stasio, M., Facchiano, A., Comi, G., Malorni, A., Siciliano, R.A. (2006) Matrix-assisted laser desorption ionizationtime of flight mass spectrometry for the discrimination of food-borne microorganisms. Applied and Environmental Microbiology, 72,1180-1189. 

Online viscometers (single, dual, or four capillary type viscometers with a symmetrical or asymmetrical bridge) These measure the pressure difference between a sample path and a reference path filled with pure solvent. Viscometers are used to measure specific and intrinsic viscosity, molar masses based on Benoit s universal calibration approach [6] and Mark-Houwink coefficients. Mass spectrometry (MS) detectors (see Chapter 10) Different MS methods have been used in macromolec-ular analysis. They are used to determine absolute molar masses for homo- and copolymers and to detect polymer structures. Matrix-assisted laser desorption ionizationtime of flight (MALDI-ToF) and electrospray ionization (ESI) are the most common instruments used in combination with SEC (Section 9.4.2.4). A recent application summary is available [12]. 

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