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A significant amount of information about

a protein can be determined using peptide

mapping. However, additional information

can also be found through characterization

of the whole protein (or light and heavy chain

fragments). Accurate mass and, to some

degree, the heterogeneity of the protein

can be determined. Intact mass is also an

important step after manufacture, to ensure

the stability of the biotherapeutic drug after

storage. Intact mass characterization is

sometimes referred to as “top down” for

the proteins and is challenging compared to

peptide mapping, due to the large mass and

complex nature of the samples.

Intact Mass

Recommended Column

Thermo Scientific

MAbPac RP 4 µm,

2.1

×

50 mm column

Product code: 088648

Thermo Scientific

ProSwift RP-5H

100 µm

×

500 mm column

Product code: 164928

• Simplified process for the characterization of

large and complex protein samples

• Reveals information not determined during

peptide mapping, such as accurate mass

and heterogeneity of protein

• Confirms stability of biotherapeutic drug after

manufacturing

Sample Preparation

SOLAµ SPE Plates

for increased sensitivity

Sample Handling

Virtuoso Vials

The highest level of sample

integrity and sample

information possible

Column

MAbPac RP

and

ProSwift RP-5H Columns

UHPLC

Vanquish UHPLC Systems

Built for every

biopharma workflow

Mass Spectrometry

Thermo Scientific

Q Exactive HF Hybrid Quadrupole-Orbitrap Mass Spectrometers

Quantify, confirm and characterize

compounds in a single analysis