Table 2 Summary of raw materials and synthesis parameters.

From: Real-time breath analysis for COPD risk assessment in smokers using a ZnO/SnO₂ heterojunction sensor integrated with support vector machine

Sample name

Material

Quantity (m.mole)

Reaction time (Hrs.)

Temperature (°C)

Z

Zn(C₂H₃O₂)₂·2H₂O

0.5

6

120

S

SnCl₂·2H₂O

10

48

130

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