Mass Spectrometry Protein Standard Mix from China
Certified mixture of 48 proteins at femtogram/attomole levels for LC-MS/MS instrument calibration and sensitivity testing. Certified reference material under HTS 3822.19.0080.
Duty Rate — China → United States
12.5%
Rate breakdown
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• Include digestion protocol and LC gradient recommendations
• Declare peptide mass accuracy and digestion efficiency specifications
• Lyophilized standards require reconstitution stability data