Table 1

Monovalent cation effects. Samples were pre-incubated with various concentrations of chloride salts of the monovalent cations and then assayed using the standard procedure. Reported values and standard errors are triplicate absorbances at 555 nm.

Concentration of Salt (mM)


0

1

5

10

50

100


KCl

0.270 ± 0.019

0.268 ± 0.006

0.271 ± 0.002

0.261 ± 0.007

0.269 ± 0.003

0.310 ± 0.014

NaCl

0.302 ± 0.006

0.294 ± 0.017

0.292 ± 0.002

0.276 ± 0.012

0.262 ± 0.003

0.268 ± 0.003

NH4Cl

0.297 ± 0.022

0.278 ± 0.004

0.279 ± 0.009

0.225 ± 0.001

0.224 ± 0.009

0.220 ± 0.005


Bollivar et al. BMC Biochemistry 2004 5:17   doi:10.1186/1471-2091-5-17

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