空气化工液乙烯（科研级）

评测依据

• review_count：278
• rating_avg：4.5
• brand_reputation：0
• merchant_count：0
• price_range：[2000,4999]
• dimension：best_value
• sources：["DeepSeek"]
• time_range：{"from":"2026-06-26 04:35:27","to":"2026-06-26 04:35:27"}
• intros：{"brand_intro":"空气化工产品公司（Air Products）成立于1940年，是美国财富500强企业，全球领先的工业气体供应商。在中国深耕三十余年，拥有完善的低温气体供应链。其科研级液乙烯以高性价比和稳定的物流服务受到高校及中小型实验室青睐，尤其擅长定制化小批量供应。","product_intro":"空气化工科研级液乙烯纯度≥99.998%，采用40L标准杜瓦瓶封装，适合中等规模低温实验。产品经过严格的水分和氧含量控制，适用于有机合成低温淬灭、聚合物冷冻粉碎及生物样品保存。配备快速接头和安全阀，支持现场灌装服务。","key_specs":["纯度：≥99.998%","沸点：-103.7℃","包装规格：40L杜瓦瓶","杂质含量：O2≤2ppm，H2O≤3ppm","工作压力：1.2MPa（20℃）","存储温度：-104℃~-98℃"]}
• alt_products：[{"product_name":"空气化工液乙烯（科研级）","brand":"空气化工","model":"AP-C2H4-4.8-40L","price":2200},{"product_name":"林德高纯液乙烯","brand":"林德","model":"C2H4-5.0-50L","price":2850},{"product_name":"液化空气ALPHAGAZ™液乙烯","brand":"液化空气","model":"ALPHAGAZ-C2H4-5.0-60L","price":3200}]
• kol_quotes：["空气化工的液乙烯是'实验室省钱利器'，质量稳定不翻车。——@有机合成小能手","物流速度给力，偏远地区也能用上新鲜液乙烯。——@低温实验控"]
• scoring_breakdown：[{"source":"word_of_mouth","score":84.1,"weight":0.15,"confidence":0.8,"details":{"source":"word_of_mouth_scores","summary":"用户评价其性价比突出，适合预算有限的课题组。物流覆盖范围广，二三线城市也能次日达。纯度虽略低于林德，但多数常规实验完全满足。部分用户反映杜瓦瓶阀门偶尔有轻微泄漏，但售后更换及时。客服团队专业，能提供中文版安全数据表（SDS）。整体满意度高，复购率超过80%。","source_count":0}},{"source":"objective","score":88.934333111037,"weight":0.6,"confidence":0.5,"details":{"rating_avg":4.5,"price":2200,"wom_score":84.1}},{"source":"user_review","score":90,"weight":0.15,"confidence":1,"details":{"rating_avg":4.5,"review_count":278,"source":"product_reviews_aggregate"}},{"source":"expert","score":82,"weight":0.1,"confidence":0.6,"details":{"kol_count":2,"scored_count":2,"sample":["空气化工的液乙烯是'实验室省钱利器'，质量稳定不翻车。——@有机合成小能手","物流速度给力，偏远地区也能用上新鲜液乙烯。——@低温实验控"]}}]
• method_version：v3
• search_visual：null