Patent ID: 8105840

Claim:
A urine pretreatment agent for urinary protein quantitation comprising a buffer, a chelating agent, and a surfactant, wherein: the composition of the urine pretreatment agent is defined by the following formulae (1) to (6): A ≧(20/9)× X (1) B ≧2000 ×X/ 9×(100 −X ) (2) C ≧(2/9)× X (3) D≧ 200 ×X/ 9×(100 −X ) (4) E≧ 0.2 (5) F≧ 20/(100 −X ) (6) in which: X (%) represents the proportion of urine in a mixture of urine and the urine pretreatment agent; A (mM) represents the final concentration of the buffer contained in the mixture of the urine and urine pretreatment agent; B (mM) represents the concentration of the buffer in a urine pretreatment agent stock solution; C (mM) represents the final concentration of the chelating agent contained in the mixture of the urine and urine pretreatment agent; D (mM) represents the concentration of the chelating agent in the urine pretreatment agent stock solution; E (%) represents the final concentration of the surfactant contained in the mixture of the urine and urine pretreatment agent; and F (%) represents the concentration of the surfactant in the urine pretreatment agent stock solution.