饲料中维生素A乙酸酯标准品

评测依据

• review_count：89
• rating_avg：4.5
• brand_reputation：0
• merchant_count：0
• price_range：[800,1999]
• dimension：best_value
• sources：["DeepSeek"]
• time_range：{"from":"2026-06-26 04:36:32","to":"2026-06-26 04:36:32"}
• intros：{"brand_intro":"Dr. Ehrenstorfer是德国LGC集团旗下专业标准品品牌，成立于1975年，专注于农药、兽药及维生素类标准物质的研发。其产品通过ISO 17034和ISO/IEC 17025双重认证，在饲料添加剂分析领域享有盛誉，尤其以脂溶性维生素标准品的纯度和稳定性著称。","product_intro":"本品为高纯度维生素A乙酸酯标准品，纯度≥99.0%，以棕色安瓿瓶封装，每支含100mg。适用于饲料预混料及浓缩料中维生素A的HPLC定量分析，提供详细的COA证书及不确定度评估。产品经过光热稳定性测试，确保在运输和储存过程中降解率低于0.5%。","key_specs":["纯度：≥99.0% (HPLC)","包装：100mg/支","储存：-20°C避光","溶剂：乙腈（推荐复溶）","认证：ISO 17034 / ISO/IEC 17025","保质期：12个月"]}
• alt_products：[{"product_name":"饲料中维生素A乙酸酯标准品","brand":"Dr. Ehrenstorfer","model":"XA11801000AL","price":980},{"product_name":"饲料纤维分析标准品（粗纤维/NDF/ADF）","brand":"Sigma-Aldrich","model":"F6503-100G","price":1280},{"product_name":"饲料中黄曲霉毒素B1标准品","brand":"AccuStandard","model":"M-1001-1ML","price":1560}]
• kol_quotes：["中国农业大学动物科技学院教授：Dr. Ehrenstorfer的维生素标准品是我们比对实验的黄金标准。"]
• scoring_breakdown：[{"source":"word_of_mouth","score":91.5,"weight":0.15,"confidence":0.8,"details":{"source":"word_of_mouth_scores","summary":"用户称赞其纯度证书数据详尽，HPLC谱图杂质峰极少。多位饲料企业质检员表示，该标准品用于维生素A检测时线性关系良好（R²>0.999）。少数用户反映价格略高于国产品牌，但认为\"数据可靠性值得投入\"。整体评价为\"维生素分析标准品的标杆\"。","source_count":0}},{"source":"objective","score":89.02124687239366,"weight":0.6,"confidence":0.5,"details":{"rating_avg":4.5,"price":980,"wom_score":91.5}},{"source":"user_review","score":90,"weight":0.15,"confidence":0.92,"details":{"rating_avg":4.5,"review_count":89,"source":"product_reviews_aggregate"}},{"source":"expert","score":76,"weight":0.1,"confidence":0.6,"details":{"kol_count":1,"scored_count":1,"sample":["中国农业大学动物科技学院教授：Dr. Ehrenstorfer的维生素标准品是我们比对实验的黄金标准。"]}}]
• method_version：v2
• search_visual：null