Figure 2 | Scientific Reports

Figure 2

From: Assessment of creatinine concentration in whole blood spheroids using paper spray ionization–tandem mass spectrometry

Figure 2

(a) Photographs of real human whole blood spheroids (× 45) for different drying conditions: (1) in an oven for 12 min, (2) desiccator for at least 1 h, and, (3) ambient condition for at least 1.5 h. (b) SEM top views and (c) interior view of the cracks. (d) Peak area ratios of spiked creatinine to creatinine-D3 from whole blood dried under the different conditions. p value: one-way ANOVA with post-hoc Tukey HSD test (95% confidence interval).

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