Mass Spectrometry Standards

Why calibrate your mass spectrometer with irrelevant standards when you can use ProteoChem’s peptide mass spec standards that are similar to your samples?

Peptide mass spectrometry standards from ProteoChem are purified peptide standards used for the calibration of mass spectrometry instruments. ProteoChem's mass standards are conveniently packaged for individual use. You are able to dissolve the calibration peptide in buffer or matrix solution right in the tube then analyze by mass spec, either MALDI-TOF MS or ESI-MS. ProteoChem's mass spec standards are the best available.

 

 

Leu-Enkephalin        Gonadoliberin        Angiotensin I       Neurotensin       Peptide Calibration Standard set

 

1.  Leu-Enkephalin

Leu-Enkephalin purified peptide and is mass spec standard that can be used for calibration of mass spectrometers. Leu-Enkephalin's amino acid sequence is Tyr-Gly-Gly-Phe-Leu. Leu-Enkephalin gives a monoisotopic mass of 556.277 [M + H]+ and average mass of 556.6 [M + H]+. Dissolve the Leu-Enkephalin peptide with buffer or matrix solution right in the tube then analyze by MALDI-MS or ESI-MS.

 

•  Molecular Weight: 555.6

•  Monoisotopic Mass [M+H]+: 556.277 

 

 

2.  Gonadoliberin

Gonadoliberin is a purified peptide and is mass spec standard which can be used for calibration of mass spectrometers. This peptide gives a monoisotopic mass of 1182.581 [M + H]+ and average mass of 1183.3 [M + H]+. Dissolve gonadoliberin peptide right in the tube with buffer or matrix solution then analyze by MALDI-MS or ESI-MS.

 

•  Amino Acid Sequence : pGlu-His-Trp-Ser-Tyr-Gly-Leu-Arg-Pro-Gly-NH2

•  Molecular Weight : 1181.6

•  Monoisotopic Mass [M+H]+ : 1182.581

•  CAS Number : 71447-49-9

•  Alternative Names : Gonadotropin releasing hormone; Luteinizing hormone releasing hormone human (LH-RH) 

 

3.  Angiotensin I

Angiotensin I is a purified peptide and mass spec standard for mass spectrometer calibration. It has an amino acid sequence of Asp-Arg-Val-Tyr-Ile-His-Pro-Phe-His-Leu. Angiotensin I peptide mass standard gives a monoisotopic mass of 1296.685 [M + H]+. The Angiotensin I peptide standard's average mass is 1297.5 [M + H]+. Conveniently dissolve the Angiotensin I calibration standard right in the tube with buffer or matrix solution, then analyze by MALDI-MS or ESI-MS.

•  Molecular Weight: 1295.7

•  Monoisotopic Mass [M+1]: 1296.685

•  CAS Number: 70937-97-2

•  Alternative Name: Hypertensin I 

 

4.  Neurotensin

Neurotensin is a purified peptide and is mass spec standard which can be used for calibration of mass spectrometers. Neurotensin's amino acid sequence is pGlu-Leu-Tyr-Glu-Asn-Lys-Pro-Arg-Arg-Pro-Tyr-Ile-Leu. Neurotensin peptide gives a monoisotopic mass of 1690.928 [M + H]+ and average mass of 1692.0 [M + H]+. Conveniently dissolve the Neurotensin peptide right in the tube with buffer or matrix solution then analyze by MALDI-MS or ESI-MS.

•  Molecular Weight: 1691.0

•  Monoisotopic Mass [M+H]+: 1690.928

•  CAS Number: 58889-67-1 

 

5.  Peptide Calibration Standard set

Each tube of mass spec calibration standard contains 4 purified peptides: Leu-Enkephalin, Gonadoliberin, Angiotensin I, and Neurotensin. You can conveniently dissolve the mass spec calibration peptides directly in the tube with buffer or matrix solution and then analyze by MALDI-MS or ESI-MS. Each tube contains 10 ug of the 4 calibration peptides totaling 40 ug of peptide in each tube. Three tubes of purified peptides are sold in this product.

 

•  Molecular Weights: 555.6, 1181.6, 1295.7, 1691

•  Monoisotopic Masses [M+H]+: 556.277, 1182.581, 1296.685, 1690.928 

Cat. No	Product	Quantity
s6100-100ug	Leu-Enkephalin 100 ug	100 ug
s6100-3x10ug	Leu-Enkephalin 3 x 10 ug	3 x 10 ug
s6101-100ug	Gonadoliberin 100 ug	100 ug
s6101-3x10ug	Gonadoliberin 3 x 10 ug	3 x 10 ug
s6102-100ug	Angiotensin I 100 ug	100 ug
s6102-3x10ug	Angiotensin I 3 x 10 ug	3 x 10 ug
s6103-100ug	Neurotensin 100 ug	100 ug
s6103-3x10ug	Neurotensin 3 x 10 ug	3 x 10 ug
s6104-100ug	Peptide Calibration Standard  Set	100 ug (400ug total peptide)
s6104-3x10ug	Peptide Calibration Standard  Set	3 x 10 ug (120 ug total peptide)