7890B气相色谱仪安捷伦 适用于苯并[b]荧蒽 (BbF),苯并[k]荧蒽 (BkF),苯并[j]荧蒽 (BjF),苯并[e]芘 (BeP),苯并[a]芘 (BaP),苝,
品牌:安捷伦型号:7890B