土壤中pH值及有机质分析标准物质（GBW07413a）

评测依据

• review_count：190
• rating_avg：4.6
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• dimension：best_value
• sources：["天猫","京东","鸿蒙官网"]
• time_range：{"from":"2026-06-26 04:36:31","to":"2026-06-26 04:36:31"}
• intros：{"brand_intro":"海岸鸿蒙（HaiAn HongMeng）是专注于环境与农业标准物质研发的高新技术企业，拥有多项国家发明专利。产品线覆盖土壤、水质、气体等标准品，以pH、有机质、养分类标物见长。公司参与多项国家标准制定，产品通过ISO 17034认可，在农业检测领域口碑良好。","product_intro":"GBW07413a土壤中pH值及有机质分析标准物质，专为土壤酸碱度和有机质含量检测提供质控。定值项目包括pH（水浸）、pH（盐浸）、有机质、全氮、全磷、全钾等。基体为潮土，经风干、研磨、过筛、混匀、灭菌处理，均匀性良好。每瓶500g，有效期5年，适合常规土壤理化分析。","key_specs":["基质：潮土","定值项目：pH（水浸）、pH（盐浸）、有机质、全氮、全磷、全钾","规格：500g/瓶","粒度：0.25mm","有效期：5年","包装：铝箔袋真空密封"]}
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• kol_quotes：["@农技推广中心赵主任：GBW07413a的pH值很准，我们用它校准pH计多年。","@土壤学教授陈老师：有机质定值可靠，适合教学和科研。"]
• scoring_breakdown：[{"source":"word_of_mouth","score":84.69999999999999,"weight":0.15,"confidence":0.8,"details":{"source":"word_of_mouth_scores","summary":"用户反馈该标物pH值稳定、有机质定值准确，非常适合土壤理化性质日常质控。农业检测中心和土肥站用户评价其操作简便、证书清晰，与田间实测数据吻合度高。部分用户指出盐浸pH值对盐碱地研究更有参考价值。整体性价比高，是土壤基础理化分析的热门标物。","source_count":3}},{"source":"objective","score":82.8269639278557,"weight":0.6,"confidence":0.5,"details":{"rating_avg":4.6,"price":450,"wom_score":84.69999999999999}},{"source":"user_review","score":92,"weight":0.15,"confidence":1,"details":{"rating_avg":4.6,"review_count":190,"source":"product_reviews_aggregate"}},{"source":"expert","score":82,"weight":0.1,"confidence":0.6,"details":{"kol_count":2,"scored_count":2,"sample":["@农技推广中心赵主任：GBW07413a的pH值很准，我们用它校准pH计多年。","@土壤学教授陈老师：有机质定值可靠，适合教学和科研。"]}}]
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