硫化钨(IV) 催化剂

评测依据

• review_count：200
• rating_avg：4.5
• brand_reputation：0
• merchant_count：0
• price_range：[100,299]
• dimension：best_value
• sources：["京东","国药试剂官网"]
• time_range：{"from":"2026-06-26 04:35:21","to":"2026-06-26 04:35:21"}
• intros：{"brand_intro":"国药试剂（Sinopharm Chemical Reagent）是中国医药集团旗下品牌，拥有超过60年的历史，是国内最大的化学试剂供应商之一。产品覆盖分析纯、化学纯、催化剂等，以价格亲民、渠道广泛著称，是众多高校与中小企业的基础实验首选。","product_intro":"该硫化钨催化剂为工业级与科研级之间的过渡产品，纯度≥99%，适用于常规加氢脱硫、加氢脱氮等催化反应。产品为黑色粉末，粒径较粗（D50 ≤ 20 μm），但性价比极高。适合大批量筛选实验或对纯度要求不高的应用场景。","key_specs":["纯度：≥99%","粒径：D50 ≤ 20 μm","比表面积：≥ 10 m²/g","包装规格：25g / 100g / 500g","储存条件：室温、密封"]}
• alt_products：[{"product_name":"硫化钨(IV) 催化剂","brand":"国药试剂","model":"30170828-25g","price":220},{"product_name":"硫化钨(IV) 催化剂","brand":"阿拉丁","model":"W108876-25g","price":275},{"product_name":"硫化钨(IV)催化剂","brand":"麦克林","model":"W107599-25g","price":298}]
• kol_quotes：["国药的硫化钨做初步筛选完全够用，价格只有进口的1/5。","虽然粒径大，但研磨后效果不错。"]
• scoring_breakdown：[{"source":"word_of_mouth","score":77.1,"weight":0.15,"confidence":0.8,"details":{"source":"word_of_mouth_scores","summary":"用户普遍认为该产品价格实惠，适合做预实验或大批量筛选。多位企业研发人员反馈其催化活性满足工业级需求，但粒径偏大，做精细研究时需研磨。部分用户提到批次间颜色略有差异，但性能稳定。整体评价为\"够用、便宜、发货快\"。","source_count":2}},{"source":"objective","score":70.39454773869346,"weight":0.6,"confidence":0.5,"details":{"rating_avg":4.5,"price":220,"wom_score":77.1}},{"source":"user_review","score":90,"weight":0.15,"confidence":1,"details":{"rating_avg":4.5,"review_count":200,"source":"product_reviews_aggregate"}},{"source":"expert","score":82,"weight":0.1,"confidence":0.6,"details":{"kol_count":2,"scored_count":2,"sample":["国药的硫化钨做初步筛选完全够用，价格只有进口的1/5。","虽然粒径大，但研磨后效果不错。"]}}]
• method_version：v3
• search_visual：null