ponceau造句

The satisfactory results for ponceau 4R, sunset yellow and amaranth were all 93.55%.

Sunset yellow and ponceau 4r were simultaneously determined by dual wavelength equalizing-account method.

By taking biological dye ponceau-G as tracer, the colorimetric method was adopted to analyze the effect of solution surface tension and spray methods on deposition rate of droplets on rice plants.