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4 0('$&/7' Analytical and chemical consultancy services ANALYTICAL REPORT ICP-AES Date: 29 April, 2003 Name: Dr Nicholas E Leadbeater Company / Institution: King s College London MEDAC LTD Brunel Science Centre Cooper s Hill Lane Englefield Green Egham Surrey TW20 0JZ United Kingdom Tel/Fax No Aqueous component of the entire product mixture formed in the reaction of 1 mmol 4-bromoacetophenone and 1.3 mmol phenylboronic acid using 1.0 mmol TBAB as phase-transfer catalysts, 3.7 mmol Na 2 CO 3 as base, 2 ml water as solvent, 100 W microwave power, temperature ramped to 150 C and held there for 5 min. Element Results Units B Na K Ca Al Mg Fe Cu P Zr Ba Ti Zn 0.07 As, Se, Sm, Sn <0.20 Be, Bi, Cd, Ce, Co, Cr, Dy, Eu, Gd <0.10 Ge, Hf, Hg, Ir, La, Li, Mn, Mo, Nd <0.10 Ni, Os, Pb, Pr, Pt, Re, Rh, Ru, Sb <0.10 Sc, Tb, Th, Tl, Tm, V, Y, Yb <0.10 6

5 0('$&/7' Analytical and chemical consultancy services ANALYTICAL REPORT ICP-AES Date: 29 April, 2003 Name: Dr Nicholas E Leadbeater Company / Institution: King s College London MEDAC LTD Brunel Science Centre Cooper s Hill Lane Englefield Green Egham Surrey TW20 0JZ United Kingdom Tel/Fax No Organic component of the entire product mixture formed in the reaction of 1 mmol 4-bromoacetophenone and 1.3 mmol phenylboronic acid using 1.0 mmol TBAB as phase-transfer catalysts, 3.7 mmol Na 2 CO 3 as base, 2 ml water as solvent, 100 W microwave power, temperature ramped to 150 C and held there for 5 min. Element Results Units Na B Ca Al Ba Fe % % Mg 1.2 As, Bi, Mo, P, Pb Ru, Se, Sn <1.0 Be, Cd, Ce, Co, Cr, Cu, Dy, Eu, Gd <0.5 Ge, Hf, Hg, Ir, K, La, Li, Mn, Nd <0.5 Ni, Os, Pr, Pt, Re, Rh, Sb, Sc <0.5 Sm, Tb, Th, Ti, Tl, Tm, V, Y, Yb <0.5 Zn, Zr <0.5 6