Interference No. 102,408 2 1 2 sulfate or carbonate and A represents H O, or A or A together 2 represent the dianion of an organic acid selected from the group consisting of dibasic carboxylic, aconitic, 3- or 4- 1 2 carboxyphthalic and 3,4- dicarboxyphthalic acid, or A and A together represent a 4Page: Previous 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 NextLast modified: November 3, 2007