供货周期: | 一周 |
品牌: | 甄准 |
规格: | 咨询客服 |
货号: | 03016858 |
CAS号: |
婴幼儿食品和乳品中脲酶的测定用尿素标准品-上海甄准
GB 5413.31-2013 食品安全国家标准 婴幼儿食品和乳品中脲酶的测定。本标准规定了婴幼儿食品和乳品中脲酶的测定方法。本标准适用于婴幼儿食品和乳品中脲酶的定性检验。
原理:脲酶在适当酸碱度和温度条件下,催化尿素转化成碳酸铵。碳酸铵在碱性条件下生成氢氧化铵,与纳氏试剂中的碘化钾汞复盐作用生成棕色的碘化双汞铵。
上海甄准生物提供婴幼儿食品和乳品中脲酶的测定用尿素标准品。
产品信息:
货号 | 中文品名 | 英文品名 | CAS No. | 规格 |
03016858 | 尿素 EP标准品 | Urea | 100 mg | |
ZZS-BP350 | 尿素 | Urea | 57-13-6 | 1g |
NIST-2152 | 尿素 | Urea | Urea (Combustion Calorimetric Standard) | 25 g |
NIST-2141 | 尿素 | Urea | Urea | 2 g |
NIST-912a | 尿素 | Urea | Urea-Clinical | 25 g |
ZZS1706701 | 尿素C13 | Urea C13 | 58069-82-2 | 150 mg |
ZZS-CLM-311-GMP-PK | 尿素 (GMP GRADE) (13C, 99%) | Urea (GMP GRADE) (13C, 99%) | Please Inquire | |
ZZS-DLM-1269-PK | 尿素 (D4, 98%) | Urea(D4, 98%) | Unlabled Cas:57-13-6;labled Cas:1433-11-0 | 25G |
ZZS-OLM-655-1 | 尿素 (18O, 95%) | Urea(18O, 95%) | Please Inquire | |
ZZS-NOLM-654-0 | 尿素 (15N2, 99%; 18O, 96-99%) | Urea (15N2, 99%; 18O, 96-99%) | Please Inquire | |
ZZS-NLM-233-MPT-PK | 尿素 (15N2, 98%+) 微生物/热原质试验 | Urea (15N2, 98%+) | Please Inquire | |
ZZS-NLM-233-PK | 尿素 (15N2, 98%+) | Urea(15N2, 98%+) | Unlabled Cas:57-13-6;labled Cas:2067-80-3 | 5G |
ZZS-NLM-233-10-PK | 尿素 (15N2, 10%) | Urea(15N2, 10%) | Unlabled Cas:57-13-6;labled Cas:2067-80-3 | 25G |
ZZS-NLM-232-0 | 尿素 (15N1, 98%+) | Urea(15N1, 98%+) | Please Inquire | |
ZZS-COLM-4861-MPT | 尿素 (13C, 99%; 18O, 98%)微生物/热原质试验 | Urea(13C, 99%; 18O, 98%) | Please Inquire | |
ZZS-COLM-4861-PK | 尿素 (13C, 99%; 18O, 98%) | Urea(13C, 99%; 18O, 98%) | Unlabled Cas:57-13-6 | 0.5G |
ZZS-CNOLM-8871-PK | 尿素 (13C, 99%; 15N2, 99%; 18O, 99%) | Urea(13C, 99%; 15N2, 99%; 18O, 99%) | Please Inquire | |
ZZS-CNLM-234-PK | 尿素 (13C, 99%; 15N2, 98%+) | Urea (13C, 99%; 15N2, 98%+) | Unlabled Cas:57-13-6;labled Cas:78405-35-3 | 0.5G |
ZZS-CLM-311-MPT-PK | 尿素 (13C, 99%) 微生物/热原质试验 | Urea (13C, 99%) | Please Inquire | |
ZZS-CLM-311-PK | 尿素 (13C, 99%) | Urea (13C, 99%) | Unlabled Cas:57-13-6;labled Cas:58069-82-2 | 1G |
ZZK-K-URAMR | 尿素氨[快速]检测试剂盒 | Urea/Ammonia(Rapid) Assay Kit | 100Assays | |
ZZK-K-LARGE | L-精氨酸/尿素/氨[快速]检测试剂盒 | Integrated Total Dietary Fibre Assay Kit | 150 assays |
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