Trifluoroacetate salt: a counter-ion form left over from certain purification methods, reported on the certificate where relevant.
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Glossary
Freeze-Thaw Cycle
One round of freezing and thawing a solution. Repeated cycles stress and degrade peptides, which is why aliquoting is recommended.
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Glossary
Lyophilized Powder
The dry, freeze-dried form in which research peptides are typically shipped and stored. Far more stable than the same compound in solution.
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Glossary
Net Peptide Content
The mass of actual peptide in a vial after accounting for counter-ions, salts, and water. Used for high-accuracy concentration calculations.
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