buffer solution pH4/1000
21 Results
高级搜索
109438 Supelco即用型pH标准液 - (Buffer solution)
即用型pH标准液 pH 10.00 (20°C) Certipur®
109409 Supelco缓冲试剂 - (Buffer solution)
（硼酸/氯化钾/氢氧化钠），可追溯至 NIST 和 PTB 的 SRM pH 10.00 (25°C) Certipur®
109432 Supelco缓冲试剂 - (Buffer solution)
(glycine/sodium chloride/hydrogen chloride), traceable to SRM from NIST and PTB pH 1.00 (20°C) Certipur®
109435 Supelco缓冲试剂 - (Buffer solution)
(citric acid/sodium hydroxide/hydrogen chloride), traceable to SRM from NIST and PTB pH 4.00 (20°C) Certipur®
109478 Supelco铵缓冲试剂 - (Ammonium buffer solution)
用于络合滴定（氯化铵/氨水） pH = 10-11
109462 Supelco即用型pH标准液 - (Buffer solution)
即用型pH标准液 pH 11.00 (20°C) Certipur®
109406 Supelco缓冲试剂 - (Buffer solution)
（苯二甲酸氢钾），可追溯至 NIST 和 PTB 的 SRM pH 4.01 (25°C) Certipur®
109439 Supelco缓冲试剂 - (Buffer solution)
(di-sodium hydrogen phosphate/potassium dihydrogen phosphate), traceable to SRM from NIST and PTB pH 7.00 (20°C) Certipur®
109400 Supelco缓冲剂 - (Buffer Solution)
(boric acid/potassium chloride/sodium hydroxide) colour coded: yellow, tracable to NIST and PTB pH 10.00 (20°C) Certipur®
109408 Supelco缓冲试剂 - (Buffer solution)
（硼酸/氯化钾/氢氧化钠），可追溯至 NIST 和 PTB 的 SRM pH 9.00 (25°C) Certipur®