Sentence examples for chemicals were obtained from inspiring English sources

All chemicals were obtained from Sigma Chemical (St . Louis MO.

All other chemicals were obtained from Merck India Ltd ,Mumbai.

Unless otherwise stated, chemicals were obtained from Panreac.

Other analytical grade chemicals were obtained from Merck Co.

All other chemicals were obtained commercially as analytical-grade reagents.

Unless otherwise stated, chemicals were obtained from Sigma Aldrich.

All other chemicals were obtained from Sigma-Aldrich.

All other chemicals were obtained from Merck (Darmstadt, Germany).

Chemicals were obtained from Sigma-Aldrich.

Chemicals were obtained from Calbiochem (CA).

All standard chemicals were obtained from Sigma.