A capillary gas chromatographic method with directly sampling was established to determine the residual amount of formaldehyde in hydrochlorothiazide.
建立了采用直接进样毛细管气相色谱法测定氢氯噻嗪中甲醛残留量的方法。
2
The nanometer composite material has outstanding thermal stability, good optical transparency and chemical corrosion resistance, and less formaldehyderesidual quantity.