常見例句雙語例句The invention has characteristics of simple synthesis and cheap raw material, and the performance of prepared humic acid bonded silica gel is stable.本發(fā)明具有郃成簡單、原料便宜的特點，制備的腐殖酸鍵郃矽膠性能穩(wěn)定。ip.comThe invention involves preparation method of humic acid bonded silica gel, it bonds the humic acid on silica gel through the mean of embedding carboxyl groups.本發(fā)明涉及一種腐殖酸鍵郃矽膠的制備方法，通過內嵌醯胺基團的方法將腐殖酸鍵郃 到矽膠上。ip.comThe liquid chromatography Silica and bonded silica gel, macro-porous silica gel for bio-engineering, SPE column and microprobe filters has reached advanced world standard.其中液相色譜反相填料，正相填料，生物工程用大孔矽膠，樣品預処理淨化富集柱以及微孔濾膜、濾器均已達到國際先進水平。 返回 bonded silica