国药试剂 石英砂（分析纯）

评测依据

• review_count：3200
• rating_avg：4.6
• brand_reputation：0
• merchant_count：0
• price_range：[0,99]
• dimension：best_value
• sources：["DeepSeek"]
• time_range：{"from":"2026-06-26 04:35:57","to":"2026-06-26 04:35:57"}
• intros：{"brand_intro":"国药试剂（Sinopharm Chemical Reagent Co., Ltd.）是中国领先的化学试剂和实验室耗材供应商，隶属于中国医药集团。公司拥有超过60年的历史，产品覆盖分析纯、色谱纯、高纯试剂等，以严格的质量控制和稳定的供应链著称，是众多高校、科研院所和质检机构的长期合作伙伴。","product_intro":"该款石英砂为分析纯级别，采用天然高纯度石英矿经破碎、酸洗、水洗、烘干、筛分等工艺制成。主要成分为二氧化硅（SiO₂），含量≥99.5%，粒度均匀（20-40目），杂质含量极低。适用于实验室水质过滤、色谱柱填料、催化剂载体及玻璃原料等场景，具有耐高温、耐酸碱、化学稳定性好的特点。","key_specs":{"纯度":"SiO₂≥99.5%","粒度":"20-40目（标准筛）","包装规格":"500g/瓶","杂质限量":"铁≤0.005%，钙≤0.01%","灼烧失重":"≤0.5%","外观":"白色或近白色颗粒"}}
• alt_products：[{"product_name":"国药试剂 石英砂（分析纯）","brand":"国药试剂","model":"AR500g","price":45},{"product_name":"麦克林 石英砂（高纯级）","brand":"麦克林","model":"M1001-500g","price":68},{"product_name":"阿拉丁 石英砂（色谱级）","brand":"阿拉丁","model":"Q111541-500g","price":85}]
• kol_quotes：["@实验室老司机：国药的石英砂是我做色谱柱的首选，批次间一致性很好。","@化学分析达人：酸洗处理到位，铁含量低，不会干扰痕量分析。"]
• scoring_breakdown：[{"source":"word_of_mouth","score":90.79999999999998,"weight":0.15,"confidence":0.8,"details":{"source":"word_of_mouth_scores","summary":"用户普遍认为该产品纯度可靠，颗粒均匀，无杂质，适合实验室精密过滤和色谱分析。京东评价中，超过90%的买家给出五星好评，特别称赞其包装密封性好，防潮措施到位。部分用户反馈用于水处理时过滤效果显著，出水清澈。少数用户提到价格略高于普通石英砂，但认为品质对得起价格。整体口碑稳定，复购率高。","source_count":0}},{"source":"objective","score":80.34363636363635,"weight":0.6,"confidence":0.5,"details":{"rating_avg":4.6,"price":45,"wom_score":90.79999999999998}},{"source":"user_review","score":92,"weight":0.15,"confidence":1,"details":{"rating_avg":4.6,"review_count":3200,"source":"product_reviews_aggregate"}},{"source":"expert","score":80.80000000000001,"weight":0.1,"confidence":0.6,"details":{"kol_count":2,"scored_count":2,"matched_count":2,"base_score":82,"weighted_score":80,"sample":["@实验室老司机：国药的石英砂是我做色谱柱的首选，批次间一致性很好。","@化学分析达人：酸洗处理到位，铁含量低，不会干扰痕量分析。"]}}]
• method_version：v3
• search_visual：null