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Internal Standard: cat.# 31648
Surrogates for Method 552, 552.1: cat.#'s 31650, 31652, 31649, 31651
Surrogates for Method 552.2: cat.#'s 31653, 31655, 31654, 31656
Surrogates for Method 552.3: cat.#'s 31881, 31882