Method Development
We have considerable experience in developing analytical methods for the complete range of our analytical portfolio, and for the entire life cycle of a drug. Typical applications are:

  • Quality Control of APIs, starting material, intermediates and finished products
  • Stability testing
  • Characterization of substances
  • Formulation development
  • Cleaning validations
  • Packaging material testing, leachables and extractables
  • Health, Safety and Environment
  • Specialized applications, troubleshooting

At the method development stage, initial validation tests are performed to ensure that the method is scientifically sound and delivers the required results. When used in a GMP environment, methods are formally validated following the ICH guidelines, including preparation of validation protocols and reports. To provide cost-effective solutions, Watson Noke offers validation programs adapted to the development stage of the drug, and in line with the customer’s quality requirements.

Complete Analytical Development Programs
Because we have the expertise and capacity to perform comprehensive analytical development programs for a given drug substance, we are able to serve our clients with know-how and access to a broad lab infrastructure similar to a big-pharma environment.

Method Transfer
Methods developed at Watson Noke can be readily applied to perform routine analyses within our company. Alternatively, Watson Noke can transfer methods to the customer following ICH guidelines and according to GMP quality standards. Additional training of personnel at the customer site is also possible.

Typical Methods Developed for Quality Control Purposes

AssayHPLC, titration
Purity, ImpuritiesHPLC, CE, GC, TLC, IC, polarography
Water contentKarl-Fischer, loss on drying
Heavy metalsICP-OES, ICP-MS, AAS
Residual solventsHeadspace GC
Microbial purityPh. Eur, USP, harmonized methods
Particle sizeLaser diffraction, sieving, microscopy
IdentityIR, NMR, MS, HPLC
DissolutionPh. Eur. 2.9.3, USP<711>
Physical chemistrypH, viscosity, osmolality

Case Study

The method study of a Cephalosporin intermediate,
Cephalosporin intermediate 1

NMR general view

Cephalosporin intermediate 2

 NMR part 1

Cephalosporin intermediate 3
NMR part 2