Sample Components^a

Time

g (A_Cu G)

Color

MTHB (unbuffered, pH 8)

1 min

2.003^b

dark yellow

MTHB (unbuffered, pH 11)

1 min

2.003^b

dark yellow

CuCl₂ + MTHB (unbuffered, pH 8)

1 min

~2.294 (178), 2.051 (33)^d

light yellow

CuCl₂ + MTHB (unbuffered, pH 11)

1 min

~2.294 (178), 2.051 (33)^d

dark yellow

MDHB (unbuffered, pH 8)

1 min

2.003^b

light yellow

MDHB (unbuffered, pH 11)

1 min

2.003^b

yellow

CuCl₂ + MDHB (unbuffered, pH 8)

1 min

~2.294 (178), 2.051 (95.33)^d

light yellow

CuCl₂ + MDHB (unbuffered, pH 11)

1 min

~2.294 (178), 2.051 (95.33)^d

light yellow

CuCl₂ (pH 8)

-

2.284 (178), 2.05 (65)^c

colorless

CuCl₂ + MTHB (pH 8)

1 min

2.292 (170), 2.051 (21)^d

colorless

CuCl₂ + MTHB (pH 8)

1 h

2.292 (170), 2.051 (21)^d

colorless

CuCl₂ + MTHB (pH 8)

24 h

-

faint yellow

CuCl₂ + MDHB (pH 8)

1 min

2.292 (170), 2.051 (21)^d

colorless

CuCl₂ + MDHB (pH 8)

1 h

2.292 (170), 2.051 (21)^d

colorless

CuCl₂ + MDHB (pH 8)

24 hr

2.291 (170), 2.051 (21)^d

colorless