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| Name：Austintix | 18, Jun, 2026 02:54:30 | |
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with hydration the sulphonic acid groups of SPES are dissociated into SO(_3) ions. It has been found that changes also occur in the benzene ring vibrational band that are dependent on the degree of hydration. Spectral subtraction has been employed to highlight changes in the V(_a)(SO(_3)) mode which | |
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