Document 1gZmvgwNdvX9G4mYM3LQzDY3X
.Ab t V ? "T
mm
c$i*u5Mf e <o:
E. I. du Pont de N emours 5 Co m pa ny
IHCORPOPATED
W i l m i n g t o n , D e l a w a r e 19898
POLYMER PRODUCTS DEPARTMENT E X P E R I M E N T A L . ST A T IO N
PERSONAL AND C O N FID EN T IA L
cc: A . J. Dahl B. W. Karrh
L. J. Papa Pral File I .C .
- 353 - NI 1400 - 269
ZZ&-/60&
December "J, 1981
TO: DR. Y. L. POWER - PPD, Parkersburg FROM: S. S. STAFFORD
ANALYSIS OF BLOOD SAMPLES FOR PERFLUOROOCTANOATE (Job No. S10-578; PRAL Nos. 81-5276-5312; Notebook Nos. E22514,E26233,E27432)
As requested in your letter of 11/4/81 to L. J. Papa, the 37 blood samples submitted then have been analyzed for perfluorooctanoate (Cg) by the usual gas chromatographic method ES-567. Results and sample identification are given in the attached table.
Attachment jah
Key Words: Perfluorooctanoate GC B lood A n a ly s is
There s a w o rld of things we re do in g som eihing aboul
000178
EXP000069
EID713883
TABLE I CONCENTRATION OF PERFLUOROOCTANOATE IN BLOOD (a)
Sample PRAL M o . Date Sampled
81-5276
10/20/81
81-5277
10/20/81
81-5278
10/20/81
81-5279
10/21/81
81-5280
10/21/81
81-5281
10/21/81
81-5282
10/22/81
81-5283
10/22/81
81-5284
10/22/81
81-5285
10/23/81
81-5286
10/23/81
81-5287
10/23/81
81-5288
10/23/81
81-5289
10/24/81
81-5290
10/24/81
81-5291
10/24/81
81-5292
10/24/81
31-5293
10/25/81
81-5294
10/25/81
81-5295
10/25/81
81-5296
10/25/81
81-5297
10/28/81
81-5298
10/28/81
81-5299
10/28/81
81-5300
10/28/81
81-5301
10/28/81
81-5302
10/29/81
81-5303
10/29/81
81-5304
10/29/81
81-5305
10/29/81
81-5306
10/29/81
81-5307
10/29/81
81-5308
10/30/81
81-5309
10/30/81
P.R.No. 3309 3014 0622 3437 4690 4750 3524 4 687 W.S. W.S. 3743 4556 4072 0976 3237 W.S. 4310 1502 4596 4711 1925 3625 4531 4074 W.S. 4 504 3037 W.S. 3278 W.S. W.S. 3781 1753 W.S.
Name
GC Analysis _______________ (b) Date Analyzed [Cr ], vjr F/r blood
11/12/81
0.26
11/12/81
0.21
11/13/81
0.19
11/13/81
0.52
11/24/81
0.0078
11/13/81 11/13/81
0.052 0.12
11/13/81 11/13/81
0.012 0.12
11/13/81
1.7
11/13/81
0.49
11/13/81
1.0
11/23/81
0.13
11/23/81 11/23/81 11/23/81
0.10 0.21 0.12
11/23/81
0.67
11/23/81 11/23/81
0.78 0.21
11/23/81
0.015
11/23/81
0.15
11/23/81 11/23/81
0.30 0.86
11/23/81
0.38
11/23/81
0.057
11/24/81
2.5
11/24/81
0.80
11/23/81
1.1
11/24/81
2.6
11/24/81 11/24/81 11/24/81 11/24/81
0.15 0.42 0.12 0.19
11/24/81
0.032
REDACTED*
000179
EXP000070
EID713884
TABLE I CONCE NT RATION OF P_ERF_LIUOJK0_0C T A N O A I?_ JA .- ^P-0-1! (a )
Sample _ __ __ ___________________ FR.AL No. Date Sar.pl ed P.R.No
81-5310 81-5311 81-5312
10/30/81 11/3/81 11/3/81
1567 W.S. 6345
Name
CC_ Ana lisi s Date Analyzed
11/24/81 11/24/81 11/24/81
________________ (t
JJla 1 . R blood
0.22
0.33
0.52
(a) Analysis as described in Lab Method ES-567 ("Determination of Perfluorooctancic Acid in Blood, Gas Chromatographic Method", S. Stafford, 4/3/81), using the packed column GC analysis with perfluoro-n-octanoic acid as calibration standard.
(b) Although the analysis is specifically for perfluorooctanoate (acid or salts), concentrations are given in ppm fluorine for comparison with the results of total organic fluorine analyses. (ppm F = 0.6S8 x ppm perfluorooctano:c acid) Estimated uncertainty is + 10% relative standard deviation. The lower limit for quantitation is 0.007 pgF/g. The detection limit is 'u 0.004 ygF/g, tut concentrations in that range cannot be well quantitated and are reported as < 0.007. None detected (n.d.) is reported for samples with [C g ] < 0.004 ppm. which cannot be distinguished from reagent background.
000180
REDACTED*
EXP000071
EID713885
