In the specialized field of proteomics and mass spectrometry, high-quality standards are essential for ensuring instrument precision. Among the most widely recognized tools for system calibration is glufib peptide, formally known as [Glu1]-Fibrinopeptide B. As a user frequently involved in laboratory research, I have found that understanding the specific properties of this molecule is crucial for achieving consistent results during mass spec (MS) analysis.
Understanding the Molecule: What is Glufib?
[Glu1] Fibrinopeptide B is a synthetic peptide that corresponds to amino acid residues 1-14 of the native fibrinopeptide B sequence. It is derived from fibrinopeptide B amino acid residues 1-14, which is a byproduct formed during the enzymatic conversion of fibrinogen to fibrin. The specific sequence, EGVNDNEEGFFSAR, provides a stable, predictable signal that mak 1570.57 g/mol. [Glu^1] Fibrinopeptide Bis used as a indicator of coagulation and fibrinolytic activity. And is useful for the tuning and calibration of Read more es it an This peptideis derived from fibrinopeptide B amino acid residues 1-14. It is used as a mass spec (MS) standard in proteomic research. Sequence.Read more ideal reference point for researchers.
When sourcing this material, you will of Product Name. [Glu1] Fibrinopeptide B, human; Product Quantity. 5mg ; Catalog Number. LT0606 ; Molecular Weight. 1570.6 ; Formula. C66H95N19O26.Read more ten encounter it labeled as a lyophilized white powder. One of the primary advantages of this specific compound is that [Glu1]-Fibrinopeptide is freely soluble in water, allowing for easy preparation of stock solutions. Typically, you might purchase it in a format such as 1 x 0.1mg [Glu1]-Fibrinopeptide B, which is often supplied in an amber screw-top vial to protect the integrity of the substance.
Applications in Mass Spectrometry
The primary role of [Glu1] Fibrinopeptide B (often abbreviated as GluFib) is its use as a mass spec (MS) standard in proteomic research. Because it is a peptidic, biologically active peptide, it is frequently employed for the tuning and calibration of elect Mass Spectrometry standard for system assessment.1 x 0.1mg [Glu1]-Fibrinopeptide B0.1 mg ±0.01 mg Solid 4 mL Amber Screw top Vial Certificate of Analysis. rospray ionization (ESI) and MALDI mass spectrometry systems.
In my personal experience, ensuring the accuracy of your instrument’s mass-to-charge ratio is non-negotiable. Using a reliable standard like [Glu1] Fibrinopeptide B, human, allows for precise system assessment. It is also noted that [Glu1]-Fibrinopeptide B is used as an indicator of coagulation and fibrinolytic activity in various biochemical investigations.
Technical Specifications and Handling
For those looking into the technical parameters, here are the key details:
* Molecular Weight: 1570.6 Da (approx. 1570.57 g/mol).
* CAS Number: 103213-49-6.
* Purity: Most reputable suppliers offer peptide purity >95%.
* Storage: To maintain stability, it is recommended to store the lyophilized form at -20°C and protect it from light.
Fibrinopeptide is a type of peptide that highlights the complexity of protein chemistry. Because it is produced during the coagulation of fibrinogen, it is inherently linked to the study of physiological homeostasis. Whether you are dealing with [Glu1] Fibrinopeptide B, human, or other related peptides, the consistency of the peptide content—often specified as ≥75%—is a critical metric for quality control.
Observations on System Performance
One challenge sometimes encountered in high-sensitivity workflows is that the lockmass signal intensity can gradually degrade if the hardware components, such as titanium pump heads, bind to certain peptides like GluFib. To mitigate this, practitioners often use ion-pairing agents to ensure that the [G Glu-1-Fibrinopeptide B (Glu-Fib) Peptide Mass Standard lu1] Fibrinopeptide B peptide remains available for ionization.
It is fascinating to see how a specific [Glu1] Fibrinopeptide B, human, product can bridge the gap between complex biolog (glu1)-fibrinopeptide b | F3261-.1MG | SIGMA-ALDRICH ical processes and precision instrumentation. By maintaining a clean, calibrated system using standardized markers like Glufib, researchers can obtain more reliable data in their proteomic endeavors. Whether you are utilizing it for simple instrument tuning or more complex system 1 day ago—上海强耀生物科技有限公司是一家集多肽的研发、生产、销售为一体的专业多肽合成公司，主要产品有促皮质素(ACTH)，血管舒缓激肽，促胰岛素分泌肽，Peptides YY， Read more assessments, this peptide remains a cornerstone for those focused on high-quality analytical outcomes.