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婴幼儿食品和乳品中氯的测定用氯化钠标准品和硝酸银标准品-上海甄准
GB 5413.24-2010 食品安全国家标准 婴幼儿食品和乳品中氯的测定。本标准规定了婴幼儿食品和乳品中氯的测定方法。本标准适用于婴幼儿食品和乳品中氯的测定。
第一法 电位滴定法原理:试样经酸化处理后,加入丙酮,以玻璃电极为参比电极,银电极为指示电极,用硝酸银标准滴定溶液滴定试液中的氯离子,根据电位的“突跃”,确定滴定终点。按硝酸银标准滴定溶液的消耗量,计算试样中氯的含量。
第二法 沉淀滴定法原理:有机酸沉淀样品中的蛋白质,用硝酸银溶液滴定试样中的氯离子,生成氯化银沉淀;过量的硝酸银与指示剂铬酸钾反应生成铬酸银使溶液呈桔红色即为滴定终点。由硝酸银溶液的消耗量计算试样中的氯含量。
上海甄准生物提供婴幼儿食品和乳品中氯的测定用氯化钠标准品和硝酸银标准品。
产品信息:
|
货号 |
中文品名 |
英文品名 |
CAS No. |
规格 |
|
ZZS1613804 |
氯化钠USP标准品 |
Sodium Chloride |
7647-14-5 |
1 g |
|
NIST-2201 |
氯化钠 |
Sodium Chloride (Ion-Selective) |
|
125 g |
|
NIST-975a |
氯化钠 |
Isotopic Standard for Chlorine |
|
0.25 g |
|
ZZS-NACL2015 |
氯化钠滴定液 0.1N, 0.1M |
Sodium Chloride |
|
5l |
|
ZZS-NACL2011 |
氯化钠滴定液 0.1N, 0.1M |
Sodium Chloride |
|
1l |
|
ZZS-NACL20055 |
氯化钠滴定液 0.05N, 0.05M |
Sodium Chloride |
|
5l |
|
ZZS-NACL20051 |
氯化钠滴定液 0.05N, 0.05M |
Sodium Chloride |
|
1l |
|
ZZS-EBTNACL0205 |
铬蓝黑R指示剂,氯化钠内含0.2%(w/w) |
Eriochrome Blue Black R Indicator, 0.2% (w/w) in Sodium Chloride |
|
500ml |
|
ZZS-EBTNACL105 |
铬黑T指示剂,氯化钠内含1%(w/w) |
Eriochrome Black T Indicator, 1% (w/w) in Sodium Chloride |
|
500ml |
|
07141007 |
酸性橙6氯化钠标准品 |
Acid Orange 6 NaCl |
|
0.1g |
|
ZZS-CHLM-1224-1 |
氯化钠 (35Cl, 99%) |
Sodium Chloride(35Cl, 99%) |
|
Please Inquire |
|
ZZS-CHLM-1224-0.5 |
氯化钠 (35Cl, 99%) |
Sodium Chloride(35Cl, 99%) |
|
Please Inquire |
|
ZZS-NC0101L |
硝酸银滴定浓缩液0.1M |
Concentrated Volumetric Solution Silver Nitrate 0.1N (0.1M) |
|
1L |
|
ZZS-NC00281L |
硝酸银滴定浓缩液0.0282M |
Concentrated Volumetric Solution Silver Nitrate 0.0282M |
|
1L |
|
ZZS-N21000W |
硝酸银滴定液 1.0N, 1.0M |
Solution Silver Nitrate |
|
2.5l |
|
ZZS-N21000H |
硝酸银滴定液 1.0N, 1.0M |
Solution Silver Nitrate |
|
500ml |
|
ZZS-N21000F |
硝酸银滴定液 1.0N, 1.0M |
Solution Silver Nitrate |
|
1l |
|
ZZS-N2050F |
硝酸银滴定液 0.5M |
Solution Silver Nitrate |
|
1l |
|
ZZS-N20100W |
硝酸银滴定液 0.1N, 0.1M |
Solution Silver Nitrate |
|
2.5l |
|
ZZS-N20100H |
硝酸银滴定液 0.1N, 0.1M |
Solution Silver Nitrate |
|
500ml |
|
ZZS-N20100F |
硝酸银滴定液 0.1N, 0.1M |
Solution Silver Nitrate |
|
1l |
|
ZZS-N201005 |
硝酸银滴定液 0.1N, 0.1M |
Solution Silver Nitrate |
|
5l |
|
ZZS-N201709W |
硝酸银滴定液 0.1709N, 0.1709M |
Solution Silver Nitrate |
|
2.5l |
|
ZZS-N201709F |
硝酸银滴定液 0.1709N, 0.1709M |
Solution Silver Nitrate |
|
1l |
|
ZZS-N20085W |
硝酸银滴定液 0.085N, 0.085M |
Solution Silver Nitrate |
|
2.5l |
|
ZZS-N20050W |
硝酸银滴定液 0.05N, 0.05M |
Solution Silver Nitrate |
|
2.5l |
|
ZZS-N20050F |
硝酸银滴定液 0.05N (0.05M) |
Solution Silver Nitrate |
|
1l |
|
ZZS-N2004W |
硝酸银滴定液 0.04N, 0.04M |
Solution Silver Nitrate |
|
2.5l |
|
ZZS-N20010F |
硝酸银滴定液 0.01N |
Solution Silver Nitrate |
|
1l |
|
ZZS-N20014W |
硝酸银滴定液 0.0141N, 0.0141M |
Solution Silver Nitrate |
|
2.5l |
|
ZZS-N20019F |
硝酸银滴定液 0.0192M |
Solution Silver Nitrate |
|
1l |
|
ZZS-N20020F |
硝酸银滴定液 0.02N, 0.02M |
Solution Silver Nitrate |
|
1l |
|
ZZS-N20020W |
硝酸银滴定液 0.02N, 0.02M |
Solution Silver Nitrate |
|
2.5l |
|
ZZS-N20025F |
硝酸银滴定液 0.025N, 0.025M |
Solution Silver Nitrate |
|
1l |
|
ZZS-N20028W |
硝酸银滴定液 0.0282N, 0.0282M |
Solution Silver Nitrate |
|
2.5l |
|
ZZS-N2004F |
硝酸银滴定液 0.04N, 0.04M |
Solution Silver Nitrate |
|
1l |
|
ZZS-MN2001OH |
非水滴定液硝酸银 0.01N 0.01M |
Non Aqueous Titrant Silver Nitrate 0.01N 0.01M in Methanol |
|
500ml |
|
ZZS-MN20010F |
非水滴定液硝酸银 0.01N 0.01M |
Non Aqueous Titrant Silver Nitrate 0.01N 0.01M in Methanol |
|
1l |
|
ZZS-MN2010H |
非水滴定液 0.1N硝酸银 |
Non Aqueous Titrant Silver Nitrate 0.01N 0.01M in Methanol |
|
500ml |
|
ZZS-MN2010F |
非水滴定液 0.1N 硝酸银 |
Non Aqueous Titrant Silver Nitrate 0.01N 0.01M in Methanol |
|
1l |
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