Thermo NanoDrop One - Page 274

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NanoDrop One Viewer Software
274 NanoDrop One User Guide Thermo Scientific
Formula table (optional) Use the Formula table to specify additional reported results, such as a purity ratio, for
each sample.
Available options:
•Predefined. Select from a list of predefined formulas, which can be used as is or
edited, and choose Add. The predefined formula is listed in the Formula Table.
• Add. Create formula for current method. Available options:
• Formula Name. Enter a name for the formula. After a measurement, the
name is reported in Data Table and Sample Details screens.
• Formula. Enter valid formula (see below for rules and examples). After a
measurement, the measured or calculated value is reported in Data Table and
Sample Details screens.
• Unit. Enter unit for reported result. After a measurement, the unit is reported
in Data Table and Sample Details screens.
• Edit. Edit selected formula for current method.
• Delete. Delete selected formula from current method.
Formula rules Custom formulas can include the following operators and functions:
• Path(). Returns sample pathlength in cm.
• A(nm). Returns sample absorbance at specified wavelength (for example, enter
A(650) to add the measured absorbance at 650 nm to your equation).
• Operators: + (add), - (subtract), * (multiply), / (divide).
• Functions: Log(x), Pow(x,y).
Notes: Follow these additional rules for all languages:
• Use period “.” decimal separators for floating point and double-floating point
numbers.
• Use comma “,” list separators (for example, “POW(2,8)”).
• Do not use comma “,” group separators for large numbers (for example, enter
1000 rather than 1,000).
Setting Available Options