麦克林 柠檬酸标准品 (Citric Acid Standard)

评测依据

• review_count：2100
• rating_avg：4.7
• brand_reputation：0
• merchant_count：0
• price_range：[100,299]
• dimension：best_quality
• sources：["京东","天猫","麦克林官网"]
• time_range：{"from":"2026-06-25 15:23:45","to":"2026-06-25 15:23:45"}
• intros：{"brand_intro":"麦克林（Macklin）成立于2003年，是国内知名的科研试剂品牌，隶属于上海麦克林生化科技有限公司。公司以\"让科研更简单\"为使命，拥有超过10万种产品库存，涵盖标准品、高纯试剂及生化试剂。其品控体系通过ISO 17025认证，每批产品均经过HPLC、GC、NMR等多重检测。创始人张华先生强调\"极致性价比\"，在保证纯度≥99.5%的前提下，价格仅为进口品牌的1/3。","product_intro":"该产品为高纯度柠檬酸标准品（纯度≥99.9%），单组分包装，附有详细COA及MSDS。核心卖点在于极低的杂质干扰（金属离子<10ppm），特别适用于食品添加剂检测及生物缓冲液配制。相比阿拉丁同类产品，麦克林提供更灵活的包装规格（0.1g-100g），且支持小批量定制，深受高校课题组青睐。","key_specs":{"纯度":"≥99.9% (HPLC)","分子式":"C6H8O7","CAS号":"77-92-9","包装规格":"1g/瓶","储存条件":"室温密封干燥","应用领域":"食品检测、药物分析、缓冲液配制"}}
• alt_products：[{"product_name":"麦克林 柠檬酸标准品 (Citric Acid Standard)","brand":"麦克林","model":"C805350-1g","price":180},{"product_name":"坛墨质检 草酸标准溶液 (Oxalic Acid Standard Solution)","brand":"坛墨质检","model":"BW20001-1000-W-100","price":120}]
• kol_quotes：[]
• scoring_breakdown：[{"source":"word_of_mouth","score":89.5,"weight":0.15,"confidence":0.8,"details":{"source":"word_of_mouth_scores","summary":"用户反馈集中在\"纯度稳定\"\"价格实惠\"，京东好评率98%。专业评测显示，其重金属残留低于0.5ppm，符合GB 5009标准。缺点是有用户反映包装瓶密封性一般，建议分装后立即密封。整体满意度高，尤其适合预算有限的实验室。","source_count":3}},{"source":"objective","score":92.2,"weight":0.6,"confidence":0.8,"details":{"rating_avg":4.7,"review_count":2100,"wom_score":89.5}},{"source":"user_review","score":94,"weight":0.15,"confidence":1,"details":{"rating_avg":4.7,"review_count":2100,"source":"product_reviews_aggregate"}}]
• method_version：v2
• search_visual：null