฿980.00
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฿1,930.00
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฿1,990.00
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฿1,460.00
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Standard Solution of As
100μg/mL, matrix: 1% HNO3
฿1,800.00
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As solution
100µg/ml,5% HNO3
฿1,790.00
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Silicic standaard
1000µg/ml, matrix 0.05 mol/L NaOH
฿1,860.00
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6 Nitrobenzene compounds mix
0.10mg/ml, matrix: methanol
฿3,600.00
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Nitrate solution
0.1005mol/L medium: H2O (water)
฿1,590.00
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NO3--N in Water
1000μg/mL Matrix: Water U=1%
฿1,280.00
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