NOMENCLATURE
K = partition coefficient.
M or 1/K Value
0 2 4 6 8 10 12 14 16 18 20 24 28 32 36 40 50 60 ‘70 80 90 100 120 140 160 180 200
248
280 320 360 400
1.450 1.414 1.378 1.341 1.304 1.265 1.225 p Value 1.8 1.7 1.6 1 . 5 2.1 2.0 1.9 5000 5000 5000 5000 5000 5000 5000 2584 2574 2563 2553 2543 2534 2526 2001 1985 1970 1954 1940 1926 1913 1718 1700 1680 1662 1643 1626 1610 1548 1526 1503 1482 1461 1442 1423 1433 1408 1383 1360 1336 1314 1293 1350 1322 1296 1269 1244 1219 1197 1286 1257 1228 1200 1173 1146 1121 1236 1205 11’75 1145 1116 1088 1061 1196 I164 1132 1100 1069 1039 1011 1163 1130 1098 1063 1030 999 969 1112 PO76 1040 1004 969 935 903 1075 1037 923 886 852 998 960 1047 1007 926 886 848 811 967 1026 984 857 817 778 941 899 1009 965 834 791 751 921 877 978 790 743 699 885 932 837 911 960 760 711 663 861 810 947 739 792 897 845 687 635 723 778 887 833 658 615 939 934 879 824 654 599 712 768 643 585 929 781 874 819 702 868 750 627 566 810 889 743 616 552 805 681 739 609 542 675 603 535 671 599 529 668 594 521 591 5116 513 511
600 600 700
1.4 5000 2518 1901 1595 1406 1278 1175 1099 1037 986 942 873 820 777 742 713 658 618 588 564 546 530 507 490 478 468 460 449 441 436 432 429 425
1.3 5000 2511 1891 1583 1391 1257 1157 1079 1016 963 919 847 792 747 711 680 621 578 545 519 498 480 453 433 417 405 395 380 368 361 354 350 342 337 334 332
1 1200 1400 1600
917
858
796
730
659
585
505
=
x
=
1.184 1.140 1.095 1.049
8Qo
1p
P
420
328
1.2 5000 2505 1883 1572 1379 1243 1142 1063 998 945 899 826 769 723 685 653 590 545 509 481 458 439 408 384 366 351 338 319 304 293 284 2’97 263 255 249 244 241 238 235 233 231 230
228
1.1
5000 2501 1877 1565 1370 1234 1132 1052 986 932 886 811
753 706 667 634 569 522 485 455 430 409 376 350 329 312 298 275 257 243 231 222 203 190 180 172 166 160 152 147 142 138 136 131 127 124 122 120 119
M 0th PBXP
ratio of partition coefficients, K A and Ker of two solutes, A and B.
number of upper phase transfers per cycle of z y transfers. = number of lower phase transfers per cycle of z g transfers. = p value, derived from known partition coefficients. = p value, calculated from S.S.D. results.
+
+
LITERATURE CITED
(1) Alderweireldt, F., Bull. SOC. chirn. Bel . 67, 225 (1958). (2) Afderweireldt, F., J. Chromalog. 5 , 98 (1961). (3) Auer, P. L., Gardner, C. S., Ind. Eng. Chem. 40, 39 (1954). (4) Bush, M. T., Densen, R. M., ANAL. CHEM.20, 121 (1948). (5) Compere, E. L., Ryland A. L., Ind. Eng. Chem. 46,24 (1954). (6) Peppard, D. F., Peppard, &I. A,, I@., 46, 34 (1954). (7) Rigby, F. L., J. Am. Chem. BOC. 74 6118 (1952). (8) dcheibel, E. C., “Technique of Organic Chemistry,” 2nd ed., Vol. 111, 332, Interscience, New York, 1956. (. 9. b tene, S., Arkiv. Kemi Mineral. Ceol. 18A,Nb. 18 (1944). (10) Verzele, M., Bull. SOC. chirn. Belg. 62, 619 (1953). (111 Verzele. M.. Vallerstein Labs. Com’ hum. 18,’62 i8l (1955). (12) Versele, id., Alderweireldt, F., Nature 174, 702 (1954). RECEIVED for review February 10, 1961. Accepted August 24, 1961.
Corrections tion Methods f Vapors
low concentrations which are finally ried out after 37 upper phase and 36 lower phase transfers. The distribuobtained in fundamental C.C.D. The tion was continued with a slightly S.S.D. separation proved entirely successful. IC ti phase system of benzene increased number of upper phase transfers. After 282 lower phase and 287 and t ~ e t h a n o ~ a m i n(150 e grama)-ethylene glycol (250 ~ r a m s ) - h y d r o c h ~ o r ~ ~upper phase transfers, the correct acid (24 ml., llN)-water (to 1 liter) y/z program was found to be 5/6. bal partition coeficient was This program was run for 2 daya and higher than I. Separation by nights, until the total transfer number f ~ d t i ~ e n C.C.D. t a ~ gave a fl value of was 1220. The results are shown in 2.2 between h ~ ~ and~ cohuuione. ~ n e Figures 7 and 8. From the collected ~ d h u m u l o n e has a higher partition uent 12 grams of pure cohumulone coefficient than h u u l o n e . The starting were isolated. mixture (50 grams) contained 40% coIn a similar manner adhumulone was humulone, 22% humdone, and 38% also successfully isolated from humuadhumulone as determined by partilone, although the fl value is here only tion chroma~graphy (11). The feed 1.5.
calculating the data of Table I.
In this article by 3. E. Lovelock [ANAL.CBEM.33, 162 (1961)], on page 168, Figure 8, the inside diameter of the flame ionization detector is 2.5 cm. On page 169, Figure 9, the inside diameter is 1.0 om. On page 177, reference 96, the volume number should be 187 instead of 185.
~ ~ e ~ ~ ~ o ~ h o t o ~ e t r i ~ ination of Man in Gasolin In this article by E. D. Steinke, B. A. Jones, and Manuel Brandt [ANAL CHEW 33, 101 (1961)], reference to a similarpaper was omitted inadvertently. The paper is “Identification and Quantitative Analysis of Manganese in oUnes” by MI. Pedinelli [Chim. e (Milan)41, 1180 (1959)l.
