Expected Turn-around Time*

(e.g.. peptides, small molecules)

Accurate-mass measurements (positive or negative-ion)

Samples requiring method development, unusual preparation, or special analysis conditions

Protein ID, sequencing, or high resolution measurements

Expected Turn-around Time*

(e.g. intact proteins, DNA, small molecules)

MS/MS structure work; daughter, parent, or neutral-loss analyses

(e.g. samples requiring method development)

Accurate mass measurement (positive-ion); Accurate mass measurement (negative-ion); Peptide sequencing

(Inquire for negative-ion)

(e.g. small molecules or peptides)

(e.g. special chromatography conditions, method development or special setup required)

Expected Turn-around Time*

Protein ID from gel or solution; Analysis of peptide mixtures or synthetic peptides; Identification of routine protein modifications (e.g. phosphorylation); IMAC purification and phosphopeptide analysis; Complex protein mixtures

More than 6 gel bands or samples submitted at the same time may take longer.

Custom protein analysis, special sample preparation, or special instrument setup; Analysis of difficult or labile protein modifications; Identification of disulfide linkages

The search for modifications or disulfide linkages sometimes requires many experiments and may take longer

Protein fingerprint ID from digests, peptide sequencing, accurate mass or high resolution measurements

Intact protein analysis

Peptide sequencing; Accurate mass measurements (positive-ion); Intact protein analysis (FTMS)

Request for special FTMS analyses (e.g. “top-down” analysis of intact proteins); Identification of disulfide linkages

Requests for additional or custom database searches; Denovo sequence searches