analytical - ACS Publications - American Chemical Society


analytical - ACS Publications - American Chemical Societyhttps://pubs.acs.org/doi/pdfplus/10.1021/ac991736ldirectly to t...

0 downloads 99 Views 6MB Size

Analytical Chemistry (ISSN 0003-2700) is published semimonthly by the American Chemical Society, 1155 16th St., N.W., Washington, DC 20036. Periodicals postage paid at Washington, C H E M DC, and additional mailing offices. Postmaster: Send address changes to Analytical Chemistry, Member & Subscriber Services, P.O. Box 3337, Columbus, OH 43210.

For single issues, back issues and volumes, and microform editions, call the number listed for subscription orders or write the Microform & Back Issues Office at the Washington address. S T R Y For quotes and information on bulk reprint orders, contact CJS Reprint Services at 1 -888-257-2134 or 1-410-819-3991.

ANALYTICAL I

Copyright permission: The American Chemical Society holds copyright to all materials published in Analytical Chemistry unless otherwise noted. Reprographic copying beyond that permitted by Section 107 or 108 of the U.S. Copyright Act is allowed for a fee of $18.00 per article copy, paid directly to the Copyright Clearance Center (CCC), 222 Rosewood Dr., Danvers, MA 01923, USA. Reference ISSN 0003-2700 in your correspondence with CCC. A record of that code should accompany payment. Direct reprint permission requests to ACS Copyright Office, Publications Division, 1155 16th St., N.W., Washington, DC 20036 (202-872-4368; fax: 202-872-6060; [email protected]). Registered names and trademarks, etc., used in this publication, even without specific indication thereof, are not to be considered unprotected by law. Analytical Chemistry is published in print and electronic format and may be published in other formats, methods, and technologies of distribution, now known or later developed. For all illustrations submitted to and used in Analytical Chemistry, ii ts understood that they may appear in other formats, methods, and technologies of distribution, including but not limited to reprints of the articles to which they apply. Digital Object Identifier (DOI): The DOI identification system for digital media has been designed to provide persistent and reliable identification of digital objects. Information on the DOI and its governing body, the International DOI Foundation, can be found at http://www.doi.org. In the print editions, the DOI appears on the bottom of the first page; in Web editions of ACS journals, the DOI appears at the top of the HTML version of an article and at the bottom of the first page in the PDF version. Include the DOI in all document requests.

Subscription orders may be charged to VISA, MasterCard, or American Express. Call toll free 800-333-9511 in the continental U.S. Send mail orders with payment for new and renewal subscriptions to American Chemical Society, Department L-0011, Columbus, OH 43268-0011. Changes of address must include both old and new addresses with ZIP code and a recent mailing label. Send all address changes to Member & Subscriber Services at the ACS Columbus address. E-mail: address® acs.org. Please allow 6 weeks for change to become effective. Claims for missing issues will not be allowed if loss was due to failure of notice of change of address to be received in the time specified; if claim is dated (a) North America—more than 90 days beyond issue date, (b) all other foreign—more than 180 days beyond issue date. Hard copy claims are handled at the ACS Columbus address. Instructions for authors of AC Research and guidelines for A-page features are published in the Jan. 1 issue, p. 58 A, or can be obtained from the Analytical Chemistry home page (http://pubs.acs.org/ac)) Please consull these instructions prior to submitting a manuscript for consideration for publication. Manuscripts for publication in AC Research (4 copies of text and illustrative material) should be submitted to the Editor at the University of North Carolina address. Please include a signed copyright status form; a copy of this document appears on p. 62 A of the Jan. 1 issue. Manuscripts for publication in the A-page section should be submitted to the Washington editorial staff.

Document delivery: Individual articles appearing in ACS Web editions (which extend back to January 1996) and articles posted electronically as Articles ASAP can be purchased directly on the Web with VISA, MasterCard, or AMEX. Go to http://pubs.acs.org and click on Articles on Command. Purchased articles wiil be dellvered as a PDF file. Articles are also available from Chemical Abstracts Service's Document Detective Service. For information, contact CAS by phone (800-678-4337), fax (617-447-3648), e-mail ([email protected]), or at http://www.cas.org.

Supporting information (SI) is noted in the table of contents with a •. SI is available free of charge via the Internet (http://pubs.acs.org/ac). For information on electronic access, send e-mail to [email protected] or call 202-872-6333.

1999 print subscription rates include air delivery outside the U.S., Canada, and Mexico. Canadian subscriptions are subject to 7% GST (GST Reg. No. 127571347). Members may share/donate their personal subscriptions with/to libraries and the like but only after 5 years from publication.

Journals Department: American Chemical Society, 2540 Olentangy River Rd., P.O. Box 3330, Columbus, OH 43210 (614-447-3600, Ext. 3171; TELEX 6842086; fax 614-447-3745)

Nonmember rates in Japan: Nonmember subscribers in Japan must enter subscription orders with Maruzen Company Ltd., 3-10. Nihonbashi 2-chome, Chuo-ku, Tokyo 103, Japan. Tel: (03) 272-7211. Formultiyear and other rates, call toll free 800-333-9511.

The American Chemical Society and its editors assume no responsibility for the statements and opinions advanced by contributors. Views expressed in the editorials are those of the editors and do not necessarily represent the official position of the American Chemical Society.

Member & Subscriber Services: American Chemical Society, P.O. Box 3337, Columbus, OH 43210 (614-447-3776; 800-333-9511) Advertising Management: Centcom, Ltd., 676 East Swedesford Rd., Suite 202, Wayne, PA 19087-1612 (610-964-8061)

1999 SUBSCRIPTION R A T E S Print only U.S. Canada/Mexico Europe Other c o u n t r i e s

Members $ 62 108 178 214

Members Web access only Web c o m b i n e d w i t h print*

$ 68 90

Nonmember personal $ 155 201 271 307 Nonmember personal $ 171 225

Institution $ 887 933 1003 1039 Institution (1 Class C subnet) $ 931 1064

Student $ 46 92 162 198 Institution (Site License) $ 1464 1685

'Print edition can be either the Full Edition or News & Features; additional postage requ ired for subscriptions outside the U.S.

226 A

Analytical

Chemistry

News & Features, Aprll 1, 1999