certiPUR®緩沖溶液都可以溯源到NIST和PTB的標準物質(zhì)。它們在默克自己獨立的校準實驗室采用符合電極和5點校準法（依據(jù)DIN19628方法）測定，配置標準緩沖溶液所有的原來依據(jù)DIN19266標準，誤差大值是±0.015個PH單位（PH10及以上：大±0.02個PH單位）。

產(chǎn)品料號	產(chǎn)品貨號	*產(chǎn)品名稱	*產(chǎn)品規(guī)格
ME1094321000	1.09432.1000	緩沖液pH 1.00	1L/瓶
ME1094331000	1.09433.1000	緩沖液pH 2.00	1L/瓶
ME1094334000	1.09433.4000	緩沖液pH 2.00	4L/瓶
ME1094339010	1.09433.9010	緩沖液pH 2.00	10L/桶
ME1094341000	1.09434.1000	緩沖液pH 3.00	1L/瓶
ME1094351000	1.09435.1000	緩沖液pH 4.00	1L/瓶
ME1094354000	1.09435.4000	緩沖液pH 4.00	4L/瓶
ME1094359010	1.09435.9010	緩沖液pH 4.00	10L/桶
ME1078271000	1.07827.1000	緩沖液pH 4.66	1L/瓶
ME1094361000	1.09436.1000	緩沖液pH 5.0	1L/瓶
ME1094371000	1.09437.1000	緩沖液pH 6.0	1L/瓶
ME1094374000	1.09437.4000	緩沖液pH 6.0	4L/瓶
ME1072941000	1.07294.1000	緩沖液pH 6.88	1L/瓶
ME1094391000	1.09439.1000	緩沖液pH 7.00	1L/瓶
ME1094394000	1.09439.4000	緩沖液pH 7.00	4L/瓶
ME1094399010	1.09439.9010	緩沖液pH 7.00	10L/桶
ME1094601000	1.09460.1000	緩沖液pH 8.00	1L/瓶
ME1094611000	1.09461.1000	緩沖液pH 9.00	1L/瓶
ME1094614000	1.09461.4000	緩沖液pH 9.00	4L/瓶
ME1094619010	1.09461.9010	緩沖液pH 9.00	10L/桶
ME1016451000	1.01645.1000	緩沖液pH 9.22	1L/瓶
ME1094381000	1.09438.1000	緩沖液pH 10.0	1L/瓶
ME1094384000	1.09438.4000	緩沖液pH 10.0	4L/瓶
ME1094389010	1.09438.9010	緩沖液pH 10.0	10L/桶
ME1094621000	1.09462.1000	緩沖液pH 11.0	1L/瓶
ME1990220001	1.99022.0001	緩沖液pH 12.0	30 X 30 ML
ME1990224000	1.99022.4000	緩沖液pH 12.0	4L/瓶