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A newly constructed laser desorption (532 nm, 5 ns) and laser postionization (266 nm, 5 ns) time‐of‐flight mass spectrometer (LD‐LPI‐TOFMS) has been applied for improving the detection sensitivity of elements in solid samples. This method affords to acquire the information of the elemental impurities in solid standards as well as limit of detection (LOD) down to 10−8 g/g for some elements. Neutral...
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