TY - JOUR T1 - Sensitive spectrophotometric assessment of carbofuran using dapsone as a new chromogenic reagent in formulations and environmental samples JO - Eclética Química A1 - Nagaraja, P. A1 - Bhaskara, B. L. SN - 0100-4670 UL - 10.1590/S0100-46702006000400006 VL - 31 Y1 - 2006 PB - Brasil ER -