摘要:

Proceedings of the Society for Analytical Chemistry CONTENTS Proc. SOC. Analyt. Chem. Vol. 3 No. I Pages 1-12 Graups of the Society . . .. I Particle Size Analysis Group . . I Reports of Meetings .. ,. I “Trace Analysis” .. .. 3 Obituary . .. .. .. I2 “Thin Layer Chromatography”. . I I Notices .. .. .. .. I2 Forthcoming Meetings Back cover January 1966 Vol. 3 No. I January 1966 PROCEEDINGS THE SOCIETY FOR ANALYTICAL CHEMISTRY OF President of the Society A. A. Smales O.B.E. Hon. S ecretary of the Society S. A. Price Hon. Treasurer of the Society D. T. Lewis C.B. Hon. Assistant Secretaries of the Society B. S. Cooper; D. W. Wilson Secretary Miss P. E. Hutchinson 14 BELGRAVE SQUARE LONDON S.W.1 Telephone BELgravia 3258 Editor J. B. Attrill Proceedings i s published by The Society for Analytical Chemistry and distributed t o members and all subscribers t o The Analyst without charge Single copies may be obtained direct from the Secretary The Society for Analytical Chemistry a t the above address (NOT through Trade Agents) price 2s.6d. post free. Remittances payable t o “Society for Analytical Chemistry” MUST accompany orders Determination of Trace Elements with Special Reference to Fertilisers and Feeding Stuffs A Report of the Analytical Methods Committee Recommended methods for determining traces of- B Ca CI- Cr Co Cu F I Fe Mg Mn No Ni Se Zn Pp. viii + 39 21s. net Members of the Society for Analytical Chemistry are entitled t o buy copies at the special Members’ price of 12s. 6d. provided they order direct from Remittances made out t o “Society for Analytical Chemistry” must accompany Members’ orders The Editor The Analyst 14 Belgrave Square London S.W.1 Published for the Society for Analytical Chemistry by W. HEFFER AND SONS LTD. PETTY CURY CAMBRIDGE

ISSN:0037-9697    

DOI:10.1039/SA96603FX001

出版商:RSC    

年代:1966

数据来源: RSC

摘要:

THE SOCIETY FOR ANALYTICAL CHEMISTRY Forthcoming Meetings-continued February Tuesday 22nd LONDON Wednesday 23rd LONDON Friday 25th PAISLEY SPECIAL TECHNIQUES GROUP on “Special Techniques in Gas Analysis.” Speakers B. Riley C. G. Scott R. T. Parkinson and R. E. Wilson. Wellcome Building Euston Road London N.W.l; 3 p.m. BIOLOGICAL METHODS GROUP. “Modern Techniques in the Bacteriological Examination of Food,” by Dr. Meeting Room of the Chemical Society Burlington House Piccadilly London Betty Hobbs. W. 1 ; 7 p.m. SCOTTISH SECTION. “Sources of Error in Weighing,” by R. A. Chalmers B.Sc. Ph.D. F.R.I.C. “The Balance Manufacturer Educator or Sycophant,’’ by M. V. Moorhouse. College of Technology Paisley; 7.15 p.m. January LONDON Wednesday 19th Thursday 27th LONDON Friday 28th GLASGOW Saturday 29th MANCHESTER February Tuesday 1st LEICESTER Wednesday 2nd LONDON Friday 11th TAUNTON Thursday 17th LONDON THE SOCIETY FOR ANALYTICAL CHEMISTRY Forthcoming Meetings MICROCHEMICAL METHODS GROUP Discussion Meeting jointly with the Associa- tion of Clinical Biochemists on “The Instrumental Measurement of Colour in Solution.” “The Feathers,” Tudor Street London E.C.4; 6.30 p.m.PLEASE NOTE that the date of this meeting is the 19th and not the 9th as advertised. AUTOMATIC METHODS GROUP. “Economics of Automatic Analysis.” London. SCOTTISH SECTION Annual General Meeting. Glasgow. NORTH OF ENGLAND SECTION Annual General Meeting. “Thermal Analysis,” by G. F. Longman B.Sc. F.R.I.C. Old Nag’s Head Hotel Lloyd Street Manchester ; 2.30 p.m. MIDLANDS SECTION jointly with the East Midlands Section of the Royal Institute of Chemistry and the Leicester University Students Chemical Society.“Operational Statistics in Analytical Chemistry,” by A. B. Calder B.Sc. Ph.D. D.I.C. F.R.I.C. “Applications of Statistics t o the Design of Analytical Experiments,” by F. H. Downton B.Sc. Ph.D. D.I.C. The University Leicester; 7 p.m. SOCIETY meeting on “Determination of Purity of High-purity Organic “Methods of Determining Purity in Use in the Chemical Standards Division of “Some Methods of Determining the Purity of Pharmaceutical Products,” by Meeting Room of the Chemical Society Burlington House Piccadilly London Materials.” N.P.L.,” by Dr. J. D. Cox. Dr. J. H. Chapman. W.l; 7 p.m. WESTERN SECTION. “Chromatography,” by G. Nickless B.Sc. Ph.D. Taunton ; 4.30 p.m. PARTICLE SIZE ANALYSIS GROUP Inaugural Meeting. “Estimation of the Surface Area of Fine Particles,” by N. G. Stanley-Wood. “Size Analysis by Optical Microscopy,” by G. L. Fairs. “Size Analysis with the Coulter Counter ; Comparison with Sedimentation and Surface Area Measurements,” by M. J. Thornton. Meeting Room of the Chemical Society Burlington House Piccadilly London W.l; 7 p.m. Continued inside back cover - PRINTED BY W. HEFFER & SONS LTD.. CAMBRIDGE ENGLAND.

ISSN:0037-9697    

DOI:10.1039/SA96603BX003

出版商:RSC    

年代:1966

数据来源: RSC

摘要:

January 19661 THIN-LAYER CHROMATOGRAPHY 11 Thin-Layer Chromatography The following are summaries of papers presented at the meeting of the Thin-Layer Chromato- graphy Group held on September 29th 1965 and reported in the November issue of Pro- ceedings (p. 165). Thin-layer Chromatographic Study of the Reactions of Absorbed Molecules BY P. WILLIAMS (Textile Chemistry Laboratory The University Leeds 2) MR. WILLIAMS said that the oxidation of cholesterol adsorbed on silica gel with aqueous chromic acid lead to the formation of amongst other products sterol acetates. It had been shown that some of the cholesterol was first degraded to acetic acid and subsequently this solution was able to acetylate a proportion of the residual cholesterol. Quantitative experi- ments relating the extent of acetylation to the concentration of aqueous acetic acid had been described.With dilute solutions (less than 10 per cent.) esterification took place entirely on the surface of the adsorbent. It was also shown that other aliphatic alcohols and acids were readily but incompletely esterified by adsorption catalysis. Thin-layer Chromatography of Amino-acids BY P. F. LOFTS* (Textile Depavtnaent The University Leeds 2) MR. LOFTS described how highly effective solvent systems for resolving mixtures of amino- acids on films of cellulose had been discovered by a systematic study of the influence of solvent composition on the resolution. The observations had made possible a rational approach to the problem of formulating solvents for chromatographing ionic organic compounds It was shown that satisfactory solvents would contain either three or four components. A solvent containing fewer components was unlikely to be sufficiently discriminating and a solvent containing a greater number of components was unnecessarily complicated. It was also shown that the resolution was considerably influenced by the temperature and by the degree of saturation of the atmosphere in the developing tank but that it was almost independent of the film thickness. *Present address Johnson & Johnson Ltd. Gargrave Yorks.

ISSN:0037-9697    

DOI:10.1039/SA9660300011

出版商:RSC    

年代:1966

数据来源: RSC

摘要:

12 NOTICES [PYOC. SOC. Analyt. Chew. Notices FARADAY SOCIETY AN informal discussion on The Molecular Weight and Molecular-Weight Distribution of High Polymers will be held at Battersea College of Advanced Technology London S.W.11 on March 30th 1966. It is intended to discuss recent experimental methods for determining molecular weights and molecular-weight distributions of high polymers and the extent to which they can be used to provide information about the molecular state of polymers in solution. Offers of short contributions should be sent to and further details of the meeting can be obtained from Dr. P. Howard Chemistry Department Battersea College of Advanced Technology London S.W.ll. FOURTH INTERNATIONAL SYMPOSIUM ON CHROMATOGRAPHY AND ELECTRO- PHORESIS BRUSSELS 1966 THE Fourth International Symposium on chromatography and electrophoresis organised by the Belgian Society of Pharmaceutical Sciences will be held in Brussels on September 12th and 13th 1966.The official languages of the Symposium will be French Dutch English and German. Intending delegates should register before August lst 1966 and those wishing to give a Registration forms can be obtained from the Secretary of the lecture before July lst 1966. Belgian Society of Pharmaceutical Sciences 11 rue Archim&de Brussels 4 Belgium. THE SOCIETY FOR ANALYTICAL CHEMISTRY SYMPOSIUM ON NUCLEAR MAGNETIC RESONANCE AND ELECTRON-SPIN RESONANCE SPECTROSCOPY THE UNIVERSITY BIRMINGHAM MARCH 1966 A JOINT Meeting of the Society for Analytical Chemistry (organised by its Midland Section) the Birmingham and Midlands Section of the Royal Institute of Chemistry the Birmingham and Midland Section of the Society of Chemical Industry and the Midlands Section of the Chemical Society will be held on March 30th 1966 at the Haworth Lecture Theatre The University Edgbaston Birmingham 15.The Meeting will be in the form of a 1-day symposium on Nuclear Magnetic Resonance and Electron-Spin Resonance Spectroscopy. 9.45 a.m. 10.45 a.m. 11.00 a.m. 12.20 p.m. 2.00 p.m. 3.20 p.m. 3.35 p.m. Plenary Lecture “Magnetic Resonance An Introduction” by Professor N. Sheppard (University of East Anglia). Coffee. “Academic Application of Nuclear Magnetic Resonance” by J A. Smith M.A. D.Phil. F.C.S. (University of Leeds). “Analytical Application of Nuclear Magnetic Resonance Spectroscopy par- ticularly as applied to Industry” by J.K. Becconsall B.Sc. Ph.D. (Imperial Chemical Industries Ltd. Runcorn). Lunch. “Some Aspects of the Nuclear Magnetic Resonance Spectroscopy of Fluorine Compounds” by L. F. Thomas B.Sc. Ph.D. (University of Birmingham). “Discussion on Nuclear Magnetic Resonance Spectroscopy.’’ Tea. “Introduction to Electron-Spin Resonance Spectroscopy and its Applications” by D. H. Whiffen Ph.D. N.A.D. (National Physics Laboratory Teddington). “Instrumentation and Experimental Techniques in Electron-Spin Resonance Spectroscopy” by J. K. Brown B.A. Ph.D. (University of Birmingham). “Discussion on Electron-Spin Resonance Spectroscopy.” Non-members can obtain further details and registration forms from Mervyn L. Richardson A.R.I.C. A.C.T.(Birm.) c/o John & E. Sturge Ltd. Lifford Chemical Works Lifford Lane Kings Norton Birmingham 30; members of the Society will receive them direct at a later date.

ISSN:0037-9697    

DOI:10.1039/SA966030012b

出版商:RSC    

年代:1966

数据来源: RSC