M6 螺母 ,5个/包
商家询价 上海希言科学仪器有限公司
真空水解管 18ml,1个
PEEK Tubing, 14in. x .004in. ID [430001565]
Ammonium Phosphate Matrix Modifier 100mL
150x4.6mm 5um Hypersil GOLD
SHODEX GPC
10ml样品瓶套装,100只/盒
Hypersil GOLD 50x4.6mm 5um 色谱柱
TAC-LP1 超低压阴离子浓缩柱5X23MM
Calcium 1 000 μg/mL 2% HNO3 Pure 125 mL