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Tabel 1 Pengukuran konsentrasi urea di dalam urin
LarutanAbsorbansi Konsentrasi
(mg/ml)Terbaca TerkoreksiBlanko 0.006 - -Standar - 0.254 0.0001Sampel 1 0.162 0.156 0.0031Sampel 2 0.150 0.144 0.0028Sampel 3 0.128 0.122 0.0024Sampel 4 0.127 0.121 0.0024Sampel 5 0.202 0.196 0.0039Sampel 6 0.103 0.097 0.0019Sampel 7 0.117 0.111 0.0022Rerata 0.0027
Contoh Perhitungan
Konsentrasi sampel = A sampelA standar
× [ Standar ] ×FP
= 0.1560.254
× 10-4 × 50
= 0.003070866 mg/mL
Rerata = 0.0031 + 0.0028 + 0.0024 + 0.0024 + 0.0039 + 0.0019 + 0.00227
= 0.002671429 mg/mL