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    "tldr": "A cartridge transfer moves reconstituted solution from its vial into a 3 ml glass cartridge. Go slowly, avoid agitation, label it and refrigerate at once.",
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            "attribute": "section",
            "value": "What it is",
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            "attribute": "section",
            "value": "Why the transfer itself can damage the peptide",
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            "attribute": "section",
            "value": "Getting the concentration math right when you switch containers",
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            "attribute": "section",
            "value": "What the research community gets wrong about cartridge transfers",
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            "value": "Cold storage after the cartridge is filled",
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            "value": "Related reading",
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            "value": "Jiang et al. 2013 - pubmed.ncbi.nlm.nih.gov",
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            "q": "Does shaking a peptide vial ruin it?",
            "a": "Vigorous shaking forces air into the solution, and peptides can unfold and clump at the air-water surface. Gentle swirling dissolves the powder without that risk."
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            "q": "Should you use glass cartridges instead of plastic for storage?",
            "a": "Peptides can stick to plastic surfaces over time, slowly lowering the usable concentration. Neither glass nor plastic is perfectly inert: glass flakes due to chemical delamination have been observed in parenteral liquid formulations after long-term storage (Jiang et al. 2013), the unpredictable nature of peptide binding to surfaces requires optimization of experimental containers (Goebel-Stengel et al. 2011), and cetrorelix adsorbed more to glass than to polypropylene (Grohganz et al. 2004)."
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            "q": "How long does bacteriostatic water stay effective after reconstitution?",
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