Analytical Chemistry
for clinical, industrial, research, laboratories enzymes
NEW P R O D U C T S , 416 417 418 419 420 443 444 445 446 447 470 501 502 503 504 617 618 619 620 621
401 428 455 602 629
402 429 456 603 630
1 28 55 82 109 136 163 190 217
5 32 59 86 113 140 167 194 221
6 33 60 87 114 141 168 195 222
ADVERTISED PRODUCTS: 20 21 22 2 3 24 25 26 47 48 49 50 51 52 53 74 75 76 77 78 79 80 101 102 103 104 105 106 107 128 129 130 131 132 133 134 155 156 157 158 159 160 161 182 183 184 185 186 187 188 2 0 9 210 211 212 213 214 215
45.20 grams of priceless information... . . . a b o u t Mettler's full line of 11 digital readout, high-speed, top-loading balances are contained in our newest catalog. Units that weigh unknowns, batch weigh, checkweigh, weigh-in, and weigh below the balance. Weigh fast—up to 5 items in 60 seconds. Weigh accurately—precision to one part in several hundred thousand. Extremely high reproducibility. Very-easy-to-read digital readout. Available in metric and other calibrations. For a catalog contact Mettler Instrument Corporation, Box 100, Princeton, New Jersey 08540. 609-448-3000.
MARCH
C H E M I C A L S, L I T E R A T U R E : 421 422 423 424 425 426 427 448 449 450 451 452 453 454 505 506 507 508 509 510 601 622 623 624 625 626 627 628
27 54 81 108 135 162 189 216
2 29 56 83 110 137 164 191 218
3 30 57 84 111 138 165 192 219
4 31 58 85 112 139 166 193 220
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The past few years have been notable for both the increase in biochemical research and the use of enzyme chemistry as a diagnostic tool. Harleco hopes to make a contribution to this discipline by providing high quality enzymes for research and investigative use, and supplying them through our distributor organization. QUALITY
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As a prime manufacturer, we start with the freshest natural animal and vegetable sources, specially selected for biochemical manufacturing, and using the latest in isolation technique and equipment, produce an enzyme with optimum activity, purity and stability. Bulk enzyme quotations as well as more information on specific enzymes are available upon request. Please send inquiries to Harleco, Technical Service Dept., Philadelphia, Pa. 19143, specifying quantity and grade required where necessary.
Harleco® 60TH A N D W O O D L A N D AVE. PHILADELPHIA, PENNA. 19143
Analytical Chemistry NEW PRODUCTS, 416 417 418 419 420 443 444 445 446 447 470 501 502 503 504 617 618 619 620 621
ANALYTICAL CHEMISTRY'S
NEW FOLD-OUT READER SERVICE REPLY C A R D S .
ADVERTISED 20 21 22 23 47 48 49 50 74 75 76 77 101 102 103 104 128 129 130 131 155 156 157 158 182 183 184 185 2 0 9 210 211 212
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PRODUCTS: 24 25 26 51 52 53 78 79 80 105 106 107 132 133 134 159 160 161 186 187 188 213 214 215
PRODUCT CAPSULES ( W r i t e in k e y n u m b e r s ) : Y O U R R E Q U E S T F O R F R E E D A T A IS C O M PUTER P R O C E S S E D FOR F A S T A C T I O N
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MARCH
C H E M I C A L S, L I T E R A T U R E : 421 422 423 424 425 426 427 448 449 450 451 452 453 454 505 506 507 508 509 510 601 622 623 624 625 626 627 628
27 54 81 108 135 162 189 216
1 28 55 82 109 136 163 190 217
2 29 56 83 110 137 164 191 218
3 30 57 84 111 138 165 192 219
4 31 58 85 112 139 166 193 220
401 428 455 602 629
402 429 456 603 630
5 32 59 86 113 140 167 194 221
6 33 60 87 114 141 168 195 222
FIRST C L A S S Permit No. 25682 Philadelphia, Pa. 19101 BUSINESS
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CHEMISTRY
ADVANCES IN CHEMISTRY SERIES NO. 9 3
Philadelphia, Pennsylvania 19101
Analytical Chemistry
MARCH 1972
N E W PRODUCTS, CHEMICALS, LITERATURE: 401 416 417 418 419 420 421 422 423 424 425 426 427 428 443 444 445 446 447 448 449 450 451 452 453 454 455 470 501 502 503 504 505 506 507 508 509 510 601 602 617 618 619 620 621 622 623 624 625 626 627 628 629 ADVERTISED PRODUCTS: 20 21 22 23 24 25 2627 47 48 49 50 51 52 5354 74 75 76 77 78 79 8081 108 101 102 101 102 103 103 104 104 105 105 106 106 107 107 108 135 128 129 128 129 130 130 131 131 132 132 133 133 134 134 135 155 156 155 156 157 157 158 158 159 159 160 160 161 161 162 162 189 182 183 182 183 184 184 185 185 186 186 187 187 188 188 189 216 209 210 209 210 211 211 212 212 213 213 214 214 215 215 216
1 2 3 4 5 28 29 30 31 32 55 56 57 58 59 82 83 84 85 86 109 110 109 110 111 111 112 112 113 113 136 137 140 136 137 138 138 139 139 140 163 167 163 164 164 165 165 166 166 167 190 191 194 190 191 192 192 193 193 194 217 218 221 217 218 219 219 220 220 221
Valid through M A Y 31, 1972
402 403 404 405 406 407 408 409 410 411 412 413 429 430 431 432 433 434 435 436 437 438 439 440 456 457 458 459 460 461 462 463 464 465 466 467 603 604 605 606 607 608 609 610 611 612 613 614 630 631 632 633 634 635 636 637 638 639 640
414 415 441 442 468 469 615 616
6 7 8 9 10 11 12 13 14 15 33 34 35 36 37 38 39 40 41 42 60 61 62 63 64 65 66 67 68 69 87 88 89 90 91 92 93 94 95 96 114 114 115 115 116 116 117 117 118 118 119 119 120 120 121 121 122 122 123 123 142 143 143 144 148 149 150 141 141 142 144 145 145 146 146 147 147 148 149 150 169 170 170 171 175 176 176 177 177 168 168 169 171 172 172 173 173 174 174 175 196 197 197 198 203 204 204 195 195 196 198 199 199 200 200 201 201 202 202 203 223 224 224 225 222 222 223 225
18 45 72 99 126 126 153 153 180 180 207 207
16 43 70 97 124 124 151 151 178 178 205 205
17 44 71 98 125 125 152 152 179 179 206 206
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FIRST C L A S S Permit No. 25682 Philadelphia, Pa. 19101
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19 46 73 100 127 127 154 154 181 181 208
Twenty-eight papers from a symposium sponsored by the Division of Nuclear Chemistry and Technology, chaired by E. C. Freiling. Pollution . . . a growing concern . . . a concept not generally associated with radionuclides. The successful control of this hazardous waste product of nuclear energy is essential to the continued use and development of nuclear power. Critical to this problem is an understanding of the processes by which radionuclides are produced, dispersed, and retained in the environment. The papers is this volume discuss and evaluate the properties and problems relating to radionuclides, including • mechanisms of release, absorption, uptake, transport • behavior, measurement and characterization, specific weapons tests • specific activity, public health aspects, fallout • new methods and equipment 522 pages with index Clothbound (1968) $15.00 Set of L.C. cards with library orders upon request. Other books in the ADVANCES IN CHEMISTRY SERIES of related interest include: No. 89 Isotope Effects in Chemical Processes. 278 pages Clothbound (1969) $13.00 No. 82 Radiation Chemistry—II. $16.00 558 pages Clothbound (1968) No. 81 Radiation Chemistry—I. 616 pages Clothbound (1968) $16.00 No. 81 and No. 82 ordered together $30.00 No. 72 Mass Spectrometry in Inorganic Chemistry. 329 pages Clothbound (1968) $12.00 No. 68 The Mossbauer Effect and Its Application in Chemistry. 178 pages Clothbound (1967) $ 8.00 No. 66 Irradiation of Polymers. $10.00 275 pages Clothbound (1967) No. 58 Ion-Molecule Reactions in the Gas Phase. 336 pages Clothbound (1966) $10.50 No. 50 Solvated Electron. $10.50 304 pages Clothbound (1965) No. 40 Mass Spectral Correlations. 117 pages Paperbound $ 6.00 (1963) No. 26 Nonmiiitary Defense- Chemical and Biological Defenses in Perspective. 100 pages Paperbound (1960) $ 4.00 No. 18 Thermodynamic Properties of the Elements. 234 pages Clothbound (1956) $ 8.00 No. 15 Physical Properties of Chemical Compounds 536 pages Colthbound (1955) $10.00 Postpaid in U. S.and Canada: plus 30 cents elsewhere. Order from:
SPECIAL ISSUES SALES AMERICAN CHEMICAL SOCIETY 1155 SIXTEENTH ST., N.W. WASHINGTON, D. C. 20036 94 A · ANALYTICAL CHEMISTRY, VOL. 44, NO. 3, MARCH 1972
