We would like to order the following ELISA. However, before that please inform us of the following information. 1) Thimerosal: If your ELISA kit reagents are containing this chemical please inform us of which reagents are containing and those concentration. 2) Sodium azide : If your ELISA kit reagents are containing this chemical please inform us of which reagents are containing and those concentration. 3) 2-mercaptoethanol : If your ELISA kit reagents are containing this chemical please inform us of which reagents are containing and those concentration.