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as it contains five ‘major’ elements
20562-02-1
Components:
ISO 9001 and ISO 13485
for 2 months at the 2-10 ppb level in 1% HNO3 / LDPE container and for 5 months at the 100 ppb level under same conditions
EC HPLC guard column (analytical), NUCLEODUR PolarTec, 3 µm, 4x3 mm 10463020 as it contains five ‘major’For protection of your main HPLC column from contamination, it is recommended to use guard columns. These short columns are placed into a guard column holder. The guard column holder in combination with a guard column inside is installed between the injector and the HPLC column. This installation prevents chemical impurities to reach the main column. Because a contamination could form an irreversible bond with the column packing material (stationary
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