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lstt09nk(EPI+1): ÓÐÀíÓÐ¾Ý 2011-04-16 21:46:21
xinshi(½ð±Ò+4): 2011-04-18 18:13:51
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Column performance control
Check the performance of the column using the following procedure:
Sample: 100 ¦Ìl 0.5% acetone (5mg/ml)
Eluent: buffer solution or distilled H2O
Flow rate: 0.75 ml/min, room temperature
Detection: 280 nm
Column efficiency, expressed as the number of theoretical plates per meter, N/m, is
calculated using the following equation:
N/m = 5.54 ¡Á (vr / w½Æ½·½ ¡Á (1000/L)
where
N/m = number of theoretical plates/meter
vr = peak elution distance (m)
w½ = peak width at half peak height (m)
L = bed height (m)

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N/m = 5.54 ¡Á (vr / w½Æ½·½ ¡Á (1000/L)

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