PROCEEDINGS JSPS/NUS JOINT SEMINAR ON ANALYTICAL CHEMISTRY This page is intentionally left blank PROCEEDINGS JSPS/NUS JOINT SEMINAR ON ANALYTICAL CHEMISTRY Singapore 21-23 March 1988 EDITOR: S B KHOO Department of Chemistry National University of Singapore JSPS: JAPAN SOCIETY FOR THE PROMOTION OF SCIENCE NUS: NATIONAL UNIVERSITY OF SINGAPORE \v> World Scientific Singapore • New Jersey • London • Hong Kong Published by World Scientific Publishing Co. Pte. Ltd. P O Box 128, Fairer Road, Singapore 9128 USA office: 687 Hartwell Street, Teaneck, NJ 07666 UK office: 73 Lynton Mead, Totteridge, London N20 8DH JSPS/NUS JOINT SEMINAR ON ANALYTICAL CHEMISTRY Copyright © 1990 by World Scientific Publishing Co. Pte. Ltd. All rights reserved. This book, or parts thereof, may not be reproduced in any form or by any means, electronic or mechanical, including photo copying, recording or any information storage and retrieval system now known or to be invented, without written permission from the Publisher. ISBN 981-02-0017-X Printed in Singapore by JBW Printers and Binders Pte. Ltd. V JSPS/NUS JOINT SEMINAR ON ANALYTICAL CHEMISTRY 21 - 23 MARCH 1988 DEPARTMENT OF CHEMISTRY NATIONAL UNIVERSITY OF SINGAPORE ORGANIZED BY JAPAN SINGAPORE Organizing Committee: Dr Yoshio Umezawa Dr H Gunasingham (Chairman) Professor of Chemistry Dr S B Khoo Hokkaido University Dr E T Kang Sapporo, Japan Dr P W Chow Dr H K Lee Dr B T Tay (Secretary) Dr S G Ang (Treasurer) Dr G K Chuah (all from the National University of Singapore) This page is intentionally left blank \ vii Foreword by Associate Professor Sim Keng Yeow Acting Head, Department of Chemistry National University of Singapore The holding of the JSPS-NUS Seminar on Analytical Chemistry on 21-23 March 1988 at the NUS marks another important milestone in the JSPS-NUS Scientific Co-operation Programme. This is the second of the on-going series of chemistry seminars to be jointly organised by Japanese and Singaporean chemists, the first of which on Physical Organic Chemistry was held in Tokyo from 29 August to 1 September 1986. Analytical chemistry has always been the bridge linking the three other traditional areas of chemistry. It is also the field of chemistry which has the largest number of practitioners and the history of the practice of analytical chemistry in Singapore, which precedes educational and research activities in any other field of chemistry, can be traced to as far back as 1885. Since the early 1980s the government, in its efforts to upgrade and restructure economic activities, has encouraged the fostering of a strong R&D culture. With increased support from funding agencies, research activities in analytical chemistry have expanded tremendously during the past decade. It is therefore appropriate and significant that the second seminar of this series, and the first to be held here, should focus on the analytical field. It serves as a timely boost for our analytical chemists from NUS and other organisations to interact and learn from our Japanese counterparts. Such seminars which allow more chemists from our two countries to interact and which could lead to more collaborative work are most welcome and are to be encouraged. The organisers are to be congratulated for having arranged a splendid broad spectrum programme to cater for the interest of most participants. The success of holding a Seminar of this nature is due to many. VIII I would like to acknowledge the generous financial support from the JSPS, the LEE Foundation and several instrument companies in Singapore and the hard work put in by all members of the local organising committee as well as Professor Y Umezawa. The publication of the Proceedings of the Seminar is a testimony of their dedication and tireless efforts. ix CONTENTS Monday, 21 March 1988 Amperometric sensors based on biocatalyst electrodes 1 Mitsugi Senda*, Tokuji Ikeda and Toshiyuki Osakai Retention prediction of substituted phenols in reversed-phase HPLC 19 S.F.Y. Li*andH.K. Lee Ultratrace metal analysis in sea water by inductively coupled plasma atomic emission spectrometry 35 Hiroki Haraguchi* and Tasuku Akagi Liquid membrane as a separation tool — A review 49 M.S. Uddin Nondestructive spectrochemical analysis 60 Yohichi Gohshi Analysis of diatomic photoelectron spectra 61 S.Y.Lee Nonionic surfactant in solvent extraction of metal chelates 70 H. Watanabe*, T. Saitoh, Y. Kimuraand T. Kamidate The application of infra-red spectroscopy and optical microscopy in the failure analysis of plastics 79 K.Y.Ng Trace iron in wallpaper and other building materials 89 H.W.K.Ong Tuesday, 22 March 1988 Ion channel sensors 95 Yoshio Umezawa*andMasao Sugawara PIXE in analytical chemistry 110 K.F. Mok and S.M. Tang Some applications of synergistic extraction to analytical chemistry 119 Hideo A kaiwa * and Hiroshi Kawamoto