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Development of a Fluorescence-Based Sensor for Rapid When a low volume of air (20 mL) was used to carry HCN from the sample to the capture chamber, the linear range was 1.5–200 μM with a detection limit of 0.5 μM (data not shown). When using 50 mL of air, the LOD decreased to 0.25 μM, the sensitivity increased 2.4× (from 263 to 626 μM –1), and the linear range changed to 1.5–100 μM GOOD LABORATORY PRACTICE for HPLC recommended for HPLC use. Ultra pure HPLC water (18M Ω resistivity) is gene...

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