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. 2019 Dec 18;19:284. doi: 10.1186/s12903-019-0985-0

Fig. 3.

Fig. 3

The methoxyphenyl tetrazolium salt (MTS) and alkaline phosphatase (ALP) assay absorbance difference. a Absorbance of MTS and ALP in MC3T3-E1 cells. b Reaction with indicators due to the release of Ni-Cr metal ions during cell culture