Mark–Houwink equation, 882 martensitic transition, 882 mass, , 882 mass analysis in mass spectrometry, 883 mass balance in atmospheric chemistry , 883 mass concentration, , , 883 mass density, 883 mass density gradient, , , 884 mass distribution ratio in chromatography , 884 mass distribution ratio, in micellar electrokinetic chromatography , 884 mass distribution ratio, in micro-emulsion electrokinetic chromatography , 885 mass excess, , 885 mass flow rate, , 885 mass fraction, , 885mass number, , 885 mass peak in mass spectrometry, 886 mass range in mass spectrometry , 886 mass resolving power in mass spectrometry , 886 mass spectrograph, 886 mass spectrometer, 887 mass spectrometer focusing system (deflection system) , 887 mass spectrometer (operating on the linear accelerator principle) , 887 mass spectrometric detector in gas chromatography , 887 mass spectrometry, 887 mass spectroscope [obsolete] , 888 mass spectroscopy, 888 mass spectrum, 888 mass transfer coefficient in electrochemistry , 888 mass transfer in biotechnology , 889 mass (weight) of the stationary phase, in chromatography , 889 mass-average velocity in electrolytes , 889 mass-distribution function, 890 mass-flow sensitive detector in chromatography , 890 mass-law effect, 890 mass-to-charge ratio, in mass spectrometry , 890 mass-transfer-controlled electrolyte rate constant, 891 massic, 891 massive transition, 891 matched cells in spectrochemical analysis , 891 material safety data sheet (MSDS), 892 matrix effect, 892 matrix in analysis , 892 matrix isolation, 893 Mattauch–Herzog geometry, 893 maximum allowable concentration in atmospheric chemistry , 893 maximum emission concentration in atmospheric chemistry , 893 maximum hardness, principle of, 893 maximum latent period, 894 maximum permissible daily dose, 894 maximum permissible level (MPL), 894 maximum storage life, 894maximum tolerable concentration (MTC), 895 maximum tolerable dose (MTD), 895 maximum tolerable exposure level (MTEL), 895 maximum tolerated dose (MTD), 895