Quantus™ Fluorometer

  The mass spectrometry-compatible yeast and human protein extracts are designed specifically for mass spectrometry applications.   The extracts are predigested and cleaned up by solid-phase extraction for immediate use in liquid chromatography/mass spectrometry (LC/MS) analysis. Both the yeast and human extracts also are available in an intact undigested form to provide a test material for optimizing mass spec protein sample preparation. The yeast extracts are beneficial for users who prefer working with a relatively compact and well studied proteome, whereas the human extract provides opportunity for working with a complex proteome having a large dynamic range. Consistent extract protein composition is ensured by tight control over cell culture conditions and manufacturing process. Lot-to-lot consistency of extracts is monitored by various protein and peptide qualitative and quantitation methods, including LC/MS and amino acid analysis (Table 1). Our manufacturing process assures compatibility with reverse phase liquid chromatography and mass spectrometry by monitoring nonspecific protein fragmentation, nonbiological post-translational modifications and, for digested extracts, minimal undigested peptides. Features & Benefits: Compatible with LC/MS instrumentation platforms. Minimal nonbiological post-translational modifications. Peptide quantity measured by AAA. Model systems for method development/instrument monitoring. Multiple formats (digest/intact).

The GloMax® Explorer System is the newest member of the GloMax® System detection instruments. This multimode reader allows you to get up and running quickly, generating the data you need from your experiments. Simply unpack it, plug it in, and begin your experiments.

A Complete Solution for Monitoring LC and MS Instrument Quality Control and Performance. In combination with an accompanying software tool, the 6 × 5 LC-MS/MS Peptide Reference Mix provides a convenient way to assess LC column performance and MS instrument parameters, including sensitivity and dynamic range. Consists of 30 peptides; 6 sets of 5 isotopologues of the same peptide sequence, differing only in the number of stable, heavy-labeled amino acids incorporated into the sequence Labels are uniform 13C and 15N atoms. Isotopologues are chromatographically indistinguishable; however, since they differ in mass, they are clearly resolved by mass spectrometry. The isotopologues of each peptide are present in a series of tenfold dilutions. This format allows assessment of instrument dynamic range and sensitivity from a single run. The 6 × 5 LC-MS/MS Peptides are AAA-qualified for accurate monitoring, and are compatible with multiple applications and neat or complex mixtures.