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Dr. Ehrenstorfer Reference Standards
Dr. Ehrenstorfer has been the leader of the production and distribution of analytical standards, reference materials, environmental standards for residue analysis, and environmental analysis for more than 40 years. The analytical standards of Dr. Ehrenstorfer have been certified in accordance with ISO 17025 and most products were produced under the scope of ISO 17034 accreditation. The analytical standards for HPLC and GC are shown purity and uncertainty value to identify the purity of samples that are wildly used in the pharmaceutical industries, producing of agrochemical industries, and laboratory services.
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