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    "title": "Stop losing your peptide when filling cartridges",
    "entity": "Stop losing your peptide when filling cartridges",
    "url": "https://www.preppinpeppers.com/blogs/the-lab/stop-losing-your-peptide-when-filling-cartridges",
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    "tldr": "Cut compound loss when moving reconstituted solution into a glass cartridge: use a fine-gauge needle, draw slowly to limit bubbles and don't overfill it.",
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            "id": "stop-losing-your-peptide-when-filling-cartridges:title",
            "category": "identity",
            "entity": "Stop losing your peptide when filling cartridges",
            "attribute": "title",
            "value": "Stop losing your peptide when filling cartridges",
            "source": "Lab article (https://www.preppinpeppers.com/blogs/the-lab/stop-losing-your-peptide-when-filling-cartridges)",
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            "value": "2026-08-15",
            "source": "Lab article (https://www.preppinpeppers.com/blogs/the-lab/stop-losing-your-peptide-when-filling-cartridges)",
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            "value": "Preppin' Peppers Editorial Team",
            "source": "Lab article (https://www.preppinpeppers.com/blogs/the-lab/stop-losing-your-peptide-when-filling-cartridges)",
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            "value": "Cut compound loss when moving reconstituted solution into a glass cartridge: use a fine-gauge needle, draw slowly to limit bubbles and don't overfill it.",
            "source": "Lab article (https://www.preppinpeppers.com/blogs/the-lab/stop-losing-your-peptide-when-filling-cartridges)",
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            "attribute": "section",
            "value": "What it is",
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            "attribute": "section",
            "value": "Why Transfer Matters More Than You'd Think",
            "source": "Lab article (https://www.preppinpeppers.com/blogs/the-lab/stop-losing-your-peptide-when-filling-cartridges)",
            "evidence": "https://www.preppinpeppers.com/blogs/the-lab/stop-losing-your-peptide-when-filling-cartridges"
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            "attribute": "section",
            "value": "The Step-by-Step Transfer Process",
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            "value": "What Goes Wrong and How to Fix It",
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            "attribute": "section",
            "value": "What the research community gets wrong about filling peptide cartridges",
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            "value": "Gansulin Pen · Reusable Click-Dial, 3 ml (1-60 Units)",
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            "value": "Gansulin-Compatible 3 ml Glass Cartridge for Pens (10-Pack)",
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            "value": "Bee et al., Biotechnol Bioeng 2010: Aggregation of a monoclonal antibody induced by adsorption to stainless steel - pmc.ncbi.nlm.nih.gov",
            "source": "Lab article (https://www.preppinpeppers.com/blogs/the-lab/stop-losing-your-peptide-when-filling-cartridges)",
            "evidence": "https://pmc.ncbi.nlm.nih.gov/articles/PMC3926213/"
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            "entity": "Stop losing your peptide when filling cartridges",
            "attribute": "cites",
            "value": "Hollowell et al., Molecules 2020: Recent Advances in Studying Interfacial Adsorption of Bioengineered Monoclonal Antibodies - pmc.ncbi.nlm.nih.gov",
            "source": "Lab article (https://www.preppinpeppers.com/blogs/the-lab/stop-losing-your-peptide-when-filling-cartridges)",
            "evidence": "https://pmc.ncbi.nlm.nih.gov/articles/PMC7249052/"
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    "faq": [
        {
            "q": "What needle size should I use for transferring peptide to a cartridge?",
            "a": "A 30 or 31 gauge needle creates minimal dead volume and reduces peptide loss during transfer."
        },
        {
            "q": "Why does my peptide seem less potent after transferring to a cartridge?",
            "a": "Peptide can adsorb to glass and metal surfaces. Wetting the syringe before drawing and using a carrier protein like HSA can reduce this loss."
        },
        {
            "q": "Can I reuse the same needle for multiple transfers?",
            "a": "No. Needles dull after use and can introduce contamination. Use a fresh sterile needle for each transfer."
        }
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            "description": "Cut compound loss when moving reconstituted solution into a glass cartridge: use a fine-gauge needle, draw slowly to limit bubbles and don't overfill it."
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                    "@type": "Question",
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                        "text": "A 30 or 31 gauge needle creates minimal dead volume and reduces peptide loss during transfer."
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                    "@type": "Question",
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                        "@type": "Answer",
                        "text": "Peptide can adsorb to glass and metal surfaces. Wetting the syringe before drawing and using a carrier protein like HSA can reduce this loss."
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                    "@type": "Question",
                    "name": "Can I reuse the same needle for multiple transfers?",
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                        "@type": "Answer",
                        "text": "No. Needles dull after use and can introduce contamination. Use a fresh sterile needle for each transfer."
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        "published": "2026-08-15",
        "modified": "2026-10-16"
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