Document R5gBJDpRoxQ1XepVj5QRNjg7

MIGKOIIIOI. OGY ."'.t l i I OCi n : M! S T U V ci : .v ii: li SYRACUSE 11NIVElSITY RESEARCH CoilPOHATlON 1075 ComftocI: Aven ue Co II cu cinte Ciwnpin S y rn c u x r, New Yo rk 13210 Jcum&ry i o , 1968 if. /| . favfcv XV. N* . Dr* II.F, Patterson, Dir. Retell Prod. Moasento Chemicals, Ltd. 10/18 Victoria Street London, England Dear Dr. Patterson: I an presently Involved in pesticide residue analyses vith birds . . of prey. Because polychlorobiphcnyl compounds can interfere with determinations of pp* * TDK and pp* - DPT due to overlapping chrcae- top,ram re&P-s (Holmes, et al. K?tv.ro. Vol. J?l6. October PI. I need reference standards of these po2ychlcroblphonyls. I would very much appreciate your sending r.c these standards if you have them available. Five gran samples will be more than adequate. Xf 1 can reciprocate in any way in the future please let n>e know. Bincciely* *-v f \ JLL/cl Jeffrey L. Linccr Research Assistant NfcV 031091 780629'