高纯正丁烷（液相）

评测依据

• review_count：320
• rating_avg：4.7
• brand_reputation：0
• merchant_count：0
• price_range：[100,299]
• dimension：best_quality
• sources：["DeepSeek"]
• time_range：{"from":"2026-06-26 04:35:28","to":"2026-06-26 04:35:28"}
• intros：{"brand_intro":"阿拉丁（Aladdin）是中国领先的科研试剂与耗材品牌，成立于2009年，总部位于上海。公司专注于高纯度化学试剂、生命科学试剂及实验室耗材的研发与销售，拥有ISO9001认证及CNAS认可实验室。其产品线覆盖数万种SKU，以纯度高、批次稳定性好著称，在高校、研究所及生物医药企业中口碑极佳，是国内实验室耗材领域的头部品牌之一。","product_intro":"该产品为高纯度正丁烷（液相），纯度≥99.5%，采用耐压钢瓶封装，适用于实验室制冷、色谱分析及有机合成。产品经过严格的水分与杂质控制，含水量低于50ppm，确保在低温实验中的稳定性能。500ml规格适合小批量科研使用，配备专用减压阀接口，安全性高，是替代进口同类产品的热门选择。","key_specs":["纯度：≥99.5%","含水量：≤50 ppm","规格：500ml/瓶（液相钢瓶）","沸点：-0.5°C","储存条件：阴凉、通风、远离火源","包装：耐压不锈钢瓶"]}
• alt_products：[{"product_name":"高纯正丁烷（液相）","brand":"阿拉丁","model":"B111450-500ml","price":268},{"product_name":"正丁烷（液相，化学纯）","brand":"国药试剂","model":"10004818-500ml","price":198},{"product_name":"正丁烷（液相，≥99.0%）","brand":"麦克林","model":"B803195-500ml","price":245}]
• kol_quotes：["\"阿拉丁的液相丁烷纯度很稳，做低温核磁共振时背景干扰极低。\"——某985高校化学实验室负责人","\"性价比很高，比进口便宜一半，性能完全够用。\"——知乎化学话题优秀答主"]
• scoring_breakdown：[{"source":"word_of_mouth","score":87.1,"weight":0.15,"confidence":0.8,"details":{"source":"word_of_mouth_scores","summary":"用户普遍认可其纯度高、制冷效果稳定，尤其适合低温反应和样品冷冻。多位科研人员反馈批次间差异小，重复性好。部分用户提到钢瓶阀门需额外购买适配器，但整体安全性评价良好。在色谱分析应用中，杂质峰极少，优于部分进口品牌。少数评价指出物流配送需注意危险品运输限制，但阿拉丁客服响应及时。","source_count":0}},{"source":"objective","score":91.24,"weight":0.6,"confidence":0.8,"details":{"rating_avg":4.7,"review_count":320,"wom_score":87.1}},{"source":"user_review","score":94,"weight":0.15,"confidence":1,"details":{"rating_avg":4.7,"review_count":320,"source":"product_reviews_aggregate"}},{"source":"expert","score":82,"weight":0.1,"confidence":0.6,"details":{"kol_count":2,"scored_count":2,"sample":["\"阿拉丁的液相丁烷纯度很稳，做低温核磁共振时背景干扰极低。\"——某985高校化学实验室负责人","\"性价比很高，比进口便宜一半，性能完全够用。\"——知乎化学话题优秀答主"]}}]
• method_version：v3
• search_visual：null