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dilution
dbp
Son Güncelleme: 2012-10-04
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dilution method
kaedah pencairan
Son Güncelleme: 2014-10-15
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1) prepare 100 mg/l of methylene blue solution from stock solution (1000 mg/l) however further dilution need to be conducted in order to have a 10, 8, 6, 4 and 2 mg/l of methylene blue for the calibration curve purposes. 2) record the initial spectra of unknown methylene blue using uv vis spectrophotometer. 3) determine the concentration of the unknown sample using calibration curve recorded in step 1.
1) menyediakan 100 mg / l penyelesaian biru metilena dari penyelesaian saham (1000 mg / l) walau bagaimanapun pencairan selanjutnya perlu dijalankan untuk mempunyai 10, 8, 6, 4 dan 2 mg / l metilena biru untuk tujuan lengkung penentukuran. 2) rakam spektra awal metilena biru yang tidak diketahui menggunakan spektrohotometer uv vis. 3) tentukan kepekatan sampel yang tidak diketahui menggunakan lengkung penentukuran yang direkodkan dalam langkah 1.
Son Güncelleme: 2021-11-23
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