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All Answers2
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PCRPlus8535
2026-09-01
日常验证优先选商品化假病毒或质控品，生物安全更友好，基质和浓度更可控。灭活株适合模拟感染性样本，但需要灭活验证、生物安全审批、废液处理和更严格的防污染流程。每周二十多管建议用假病毒做浓度梯度：高阳、临界低阳、阴性基质、干扰样本。配制时不要只用PBS或水，要按说明书要求使用鼻拭子或咽拭子保存液、蛋白和基质。验证至少看临界低阳检出、批内批间重复、甲乙流/新冠等交叉反应，同时记录样本量、阳性率背景和操作差异。
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Science5964
28 days ago
预算几百到一千多一盒时，可考虑国产参考品小规格或分装品，关键阳性用商品化，部分阴性和干扰样本可自制。货期两周内优先现货，关注储存条件、开瓶稳定性、运输温度记录和是否覆盖甲流H1N1/H3N2靶标。验证表建议每款试剂盒至少设5个浓度水平、3个重复，另加阴性基质和常见呼吸道干扰株；记录假阴、假阳及操作差异。不要只看价格，要看溯源、基质匹配、批号可追溯和能否支持LOD附近验证。若只做科室日常质控，假病毒质控通常更平衡。
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