Table 1.

Mean relative optical path length for (a) T. pseudonana and (b) E. huxleyi obtained with IDS laboratory-prototype, (c) and (d) using the Raspberry Pi laboratory-prototype, and (e) and (f) using the openflexure scope.

	(a)	(b)	(c)	(d)	(e)	(f)
cell no.	T. pseudonana	E. huxleyi	T. pseudonana	E. huxleyi	T. pseudonana	E. huxleyi
1	1.037	1.081	1.045	1.100	1.057	1.095
2	1.043	1.096	1.058	1.084	1.038	1.090
3	1.054	1.098	1.062	1.092	1.053	1.100
4	1.050	1.080	1.054	1.089
5	1.053	1.087	1.056	1.095
6	1.060	1.095	1.055	1.089
7	1.060	1.093	1.058	1.087
8	1.057	1.100	1.056	1.097
average	1.051	1.091	1.055	1.092	1.049	1.095
s.d.	0.007	0.006	0.005	0.005	0.008	0.003