V O L U M E 23, NO. 6, J U N E 1 9 5 1 !CC
843
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LITERATURE CITED
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(1) Am. Petroleum Inst., Research Project 44, “Catalog of Mass Spectra Data,” National Bureau of Standards, Washington, D. C. ‘ 2 ) Hrown, R. A,, Consolidated Engmeering Corp., Mass Spectrometer Group Rept. 71 (Xovember 1949). (3) Brown, R. A., Taylor, R C., Melpolder, F M’ , and Young, W. S , ASAL. CHEM., 20, 5 (1948). 50 €3 ICO I20 140 160 I80 2CO 220 240 260 280 3X 320 340 360 3g) 403 420 440 i4i Consolidated Engineering m/e Corp., Pasadena, Calif., 3Iass Spectrum of PSC 179, 9-n-Octy1(1,2,3,4-tetrahydro)naphthacene Bull. C.E.C. 21-102. (5) Gifford, A. P., Rock, S. bl., and Comaford, D. J., AN.4L. CHEM.,21, 1026 (1949). (6) Hipple, J. A., Sommer, H.. and Thomas, H. il., Phys. Rev.. 76, 187i (1949). (7) Kistemaker, J., Anal. Chem. -4ct0, 2, 522 (1948). (8) Langer, A., and Fox, R. E.. .4xar.. CHEX., 21, 1302 (1949). (9) Mariner. T., and Bleakney, IT-.. Rei,. Sei. Instruments, 20, 297 (1949). (10) Richards, P. I., Hays, E. E., and Goudsnlit, S. A.,‘Phys. Rev., 76, 180 (1949).
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CARBON NUMBER OF CRACKED FRA6MENT
Relative Intensity of C,H?,,T I Cracked Fragments from n-Alkanes
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Figure 21.
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23 24 25 26 27 ZE E¶ NUMBER OF CARBON ATOMS
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Composition of a Petroleum Wax from IIass Spectrometer -4nalgsis
S E. F., ASAL. CHEM.,20, 1225 (1948). !12) Schiessler, R. W..Herr, C’. H.. Rytine. ..1. W.,N’eisel, C. .4.. Fischl, F., McLaughlin, R. L., and Ruehner, H. H.. Proc. A m . Petroleum Inst., 26, 111, 254 (1946). (13) Shephard, &I., J . Reseurrh .Y(Lfl. Bur. Standards. 38, 491 (1947 , . 114) Taylor, R. C . , and Young, IT. 5.. Atlantic Refining Co., C‘o~isolidated Group Rept. 13 iFeblnary 1945). (15) Ibid.,31 (February 1946). (16) Thomas, B. W.,and Seyfried. I T - , D.. ANAL. CHEM..21, 1022 (1949). (17) Washburn, H. IT..ITiley, H. F.. and Rock, S. M..IND.ENG. CHEM...IXAL. ED.,15, 541 (1943i. (18) Tyashburri, H. IT,, Wiley, H. F., Rock. 8. M., aijti berry, C. E., Ibid., 17, 74 (1945). (11) Roberto, R. H.. and Johiiseii.
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RECEIVED September 18. 1950. Presented before the Division of Analytical Chemistry, 118th Meeting of the AMERICAX C H E M I C A LSOCIETY, Chicago, 111.
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CARBON NUMBER
Figure 20. Relation of Carhon Number to Fragment Intensity for n-Alkanes Bahia: m!e 5i(C1As‘) = 100
CORRECTION. I n the paper o n “Spectrophotometric Analysis of .4mithiozone Preparations” [ L e v y , G. B., and Fergus, David, ASAL. CHEM..23, 384 (1951) 1, Figure 2 was unfortunatrl?-printed upside down.
