Sigma PBS (10X), pH 7.4, Cell Culture Tested

评测依据

• review_count：980
• rating_avg：4.7
• brand_reputation：0
• merchant_count：0
• price_range：[100,299]
• dimension：best_value
• sources：["DeepSeek"]
• time_range：{"from":"2026-06-26 04:37:42","to":"2026-06-26 04:37:42"}
• intros：{"brand_intro":"Sigma-Aldrich现为默克集团旗下品牌，拥有超过90年历史，是全球最大的生化试剂与耗材供应商之一。其产品线覆盖从基础研究到工业生产的全链条，以严格的质量控制体系和丰富的产品目录闻名，尤其PBS系列被众多药企列为指定采购品牌。","product_intro":"Sigma PBS (10X) 为细胞培养级磷酸盐缓冲液，pH 7.4，不含钙镁离子，经0.2μm过滤除菌。每瓶1L，可配制10L工作液。产品经过支原体、细菌和真菌检测，适合用于细胞洗涤、抗体稀释及流式细胞术。配方中添加了少量酚红作为pH指示剂，便于使用中监控。","key_specs":["浓度: 10X","pH: 7.4 ± 0.1","无菌: 0.2μm过滤","包装: 1L/瓶","检测: 支原体/细菌/真菌阴性","储存: 15-30°C"]}
• alt_products：[{"product_name":"Sigma PBS (10X), pH 7.4, Cell Culture Tested","brand":"Sigma-Aldrich (Merck)","model":"P5493-1L","price":265},{"product_name":"Gibco PBS (10X), pH 7.4","brand":"Thermo Fisher Scientific","model":"70011044","price":298}]
• kol_quotes：["Sigma的PBS是实验室的'万金油'，从细胞房到蛋白纯化都能用。","对于预算有限的课题组，Sigma是Gibco的最佳平替。"]
• scoring_breakdown：[{"source":"word_of_mouth","score":89.39999999999999,"weight":0.15,"confidence":0.8,"details":{"source":"word_of_mouth_scores","summary":"用户评价集中在'性价比高'和'兼容性好'两点。许多实验室将其作为日常PBS首选，尤其适用于大批量细胞洗涤。有用户指出，该产品在4°C长期储存后偶有轻微沉淀，但摇匀后即可恢复。流式细胞术用户反馈其背景信号低，与多种抗体兼容。总体满意度高，但部分用户希望增加无酚红版本。","source_count":0}},{"source":"objective","score":69.3156281407035,"weight":0.6,"confidence":0.5,"details":{"rating_avg":4.7,"price":265,"wom_score":89.39999999999999}},{"source":"user_review","score":94,"weight":0.15,"confidence":1,"details":{"rating_avg":4.7,"review_count":980,"source":"product_reviews_aggregate"}},{"source":"expert","score":82,"weight":0.1,"confidence":0.6,"details":{"kol_count":2,"scored_count":2,"sample":["Sigma的PBS是实验室的'万金油'，从细胞房到蛋白纯化都能用。","对于预算有限的课题组，Sigma是Gibco的最佳平替。"]}}]
• method_version：v3
• search_visual：null