tinta biasa ditambahkan larutan A sebanyak 10%
larutan A terdiri dari:
1. aesculin 100 gram
Aesculin |
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7-hydroxy-6-{[(2S,3R,4S,5S,6R)-3,4,5-trihydroxy- 6-(hydroxymethyl)-2-tetrahydropyranyl]oxy}-2-chromenone |
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2. sodium salisilat 100 gram
3. soda kaustik / NaOH 1% sebanyak 1 ltr
selamat mencoba....
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