1.毫微克
2.纤克
3.纳克
1.one billionth of a gram
1.The first test they did was with a virus dose of one nanogram.
他们做先将1纳克剂量的病毒做为实验的第一步。
2.After magnetite incorporation, the porous microparticle is still empty enough to accommodate nanogram quantities of a molecular payload;
结合有磁铁矿的多孔微粒仍然具有足够的空间负载纳克量的分子；
3.Determination of Nucleic Acid at Nanogram Level by Resonance Light Scattering of Ferric Nanoparticle
铁纳米粒子共振光散射测定纳克级核酸
4.Delivery of nanogram payloads using magnetic porous silicon microcarriers
利用磁性多孔硅微载体对级的有效负载进行递送
5.Determination of Nanogram Samarium Isotopic Ratio by Mass Spectrometer
超微量钐同位素丰度比的质谱测定