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The OHAA-810 is an Atomic Absorption Spectrophotometer (AAS) designed for high-precision elemental analysis. It utilizes a single flame working mode (air-acetylene) and a high-efficiency glass atomizer to detect trace levels of metals, such as Copper ($Cu$), with high sensitivity.OHAA-810 Atomic Absorption Spectrophotometer
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OR-KNA 100 fully-automatic Kjeldahl nitrogen analyzer, which adopts a new long-life design, is intelligently controlled by advanced microcomputer and operated on LCD color touch screen. Chinese/English menu-based interface is used to complete man-machine dialogue and automatically complete a series of standard processes, such as adding acid, adding alkali, adding dilution, distillation, titration,OR-KNA 100 fully-automatic Kjeldahl nitrogen analyzer