Analysis and Application of 3,4,5-Trimethoxybenzoic Acid by HPLC

3,4,5-trimethoxybenzoic acid:
P / N Inertex C18, 5u 150 × 4.6mm
Chromatographic conditions:
Mobile phase: 0.85mL 70% perchloric acid, 900mL water, 1g ammonium acetate, pH = 3, 1.54g heptane
Sodium sulfonate: acetonitrile = 20: 100: 880
Detection wavelength: 215nm Flow rate: 1.8mL / min

Place Mask over nose and mouth, and place an earloop around each ear. Pull bottom of mask under chin and mold the nosepiece around the nose. The mask should cover face from the nose to underneath the chin. Discard mask after use, DO NOT reuse masks.


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BFE ≥95%
Ply 4ply
Package 10pcs/pack,1500pcs/ctn
Carton size 53*39*44 cm
N.W. 8.2 kg
G.W. 9.2 kg
Certificates
CE, FDA, ISO

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