Mass Spectrometry

Abstract

HE increase in volume of literature T on mass spectrometry continues at an accelerating pace. Again an attempt is made to give only representative samples of various applications published since the last review of this series (1 03). Other reviews published in the interim include one by Voshage (461) on general methods and one by Pavlenko et al.

Analysis of Multicomponent Methyl- and Phenylchlorosilane Solutions

“…If pH 7 to 9 is preferable, follow the previous directions but use 6.25 ml. of the 0.20M buffer containing KCI-H3BO3, and adjust the pH to 8 ± 1.…”

“…Otherwise follow the same procedure as described for 6-hydroxy-l ,7-phenanthroline, but measure the transmittancy (absorbancy) at 585 . Use the phthalate buffer for pH 5 to 6 and the borate buffer for pH 7 to 9. Either range gives the same calibration curve.…”

Report on Recommended Specifications for Microchemical Apparatus. Oxygen Combusiton Flask

“…In this report, specifications are recommended for the conventional apparatus used in connection with oxygen flask combustion procedures (7,8). Types of apparatus employing electric ignition (2, 6,6) are not included be-cause of lack of experience with these forms.…”

“…(3) Committee on Microchemical Appara- (5) Juvet, R. S., Chiu, J., Ibid., 32, 130 (1960). (6) Martin, A. J., Deveraux, H., Ibid., 31, 1932 (1959). (7) (8) Steyermark, A., "Quantitative Organic Microanalysis," 2nd ed., p. 292, Academic Press, New York, 1961.…”

“…Sir: The ring-oven technique described by Weisz (8-6) offers a rapid, simple means for concentrating and separating materials in small samples, so that conventional reactions may be employed for identification and quantitation (4,6). The method has gained recognition for analyses of inorganic ions (6, 7) but does not seem to have been seriously applied to organic or biological materials.…”