饲料中粗蛋白质标准物质

评测依据

• review_count：178
• rating_avg：4.9
• brand_reputation：0
• merchant_count：0
• price_range：[300,799]
• dimension：best_quality
• sources：["DeepSeek"]
• time_range：{"from":"2026-06-26 04:36:32","to":"2026-06-26 04:36:32"}
• intros：{"brand_intro":"中国计量科学研究院（NIM）是国家最高的计量科学研究中心，负责研制和发布国家有证标准物质。其饲料分析标准物质严格遵循GB/T 15000系列标准，具有最高法律效力。产品广泛应用于饲料企业、质检机构和高校，是饲料营养成分检测的法定溯源基准。","product_intro":"该标准物质为饲料粗蛋白质分析用，基质为豆粕粉，蛋白质含量标准值43.5%±0.6%。采用凯氏定氮法经多家实验室联合定值，每瓶50g。适用于饲料中粗蛋白质测定的质量控制、方法验证和仪器校准。产品附有国家计量认证证书，可直接用于实验室认可评审。","key_specs":["基质：豆粕粉","标准值：43.5% ± 0.6%","定值方法：凯氏定氮法","包装：50g/瓶","认证：国家有证标准物质（GBW）","储存：室温干燥"]}
• alt_products：[{"product_name":"饲料中粗蛋白质标准物质","brand":"中国计量科学研究院","model":"GBW(E)100321","price":680},{"product_name":"饲料中重金属混合标准溶液（铅、镉、砷、汞）","brand":"坛墨质检","model":"BW20001-1000","price":480}]
• kol_quotes：["中国饲料工业协会标准委员会：GBW(E)100321是饲料蛋白质检测的法定基准，所有争议检测均以此为准。"]
• scoring_breakdown：[{"source":"word_of_mouth","score":98.69999999999999,"weight":0.15,"confidence":0.8,"details":{"source":"word_of_mouth_scores","summary":"用户普遍认为该标准物质是\"饲料蛋白质检测的定海神针\"。多位实验室主任表示，使用该标准品进行内部质控后，实验室间比对偏差从2%降至0.5%以内。部分用户反馈粉末状基质在取样时需注意均匀性，但整体评价极高，认为\"数据权威性无可替代\"。","source_count":0}},{"source":"objective","score":98.28,"weight":0.6,"confidence":0.8,"details":{"rating_avg":4.9,"review_count":178,"wom_score":98.69999999999999}},{"source":"user_review","score":98,"weight":0.15,"confidence":1,"details":{"rating_avg":4.9,"review_count":178,"source":"product_reviews_aggregate"}},{"source":"expert","score":76,"weight":0.1,"confidence":0.6,"details":{"kol_count":1,"scored_count":1,"sample":["中国饲料工业协会标准委员会：GBW(E)100321是饲料蛋白质检测的法定基准，所有争议检测均以此为准。"]}}]
• method_version：v2
• search_visual：null