Histochemical Detection of Lead in Plant Tissues

  title={Histochemical Detection of Lead in Plant Tissues},
  author={G Tung and Patrick J. Temple}
A histochemical staining technique using sodium rhodizonate was developed for detecting lead in living or preserved plant tissues. Sodium rhodizonate formed a bright scarlet-red precipitate with lead at pH 3.0, but showed no significant color responses with other metals. The precipitation of lead by this staining technique was confirmed by detection of lead in the red-stained precipitate with electron microscopy X-ray analysis. This histochemical technique for lead provided rapid, quantifiable… CONTINUE READING