Chromatographic Methods May Be Characterized According To

question 1

Multiple Choice

Chromatographic methods may be characterized according to:

• A)the physical state of the mobile phase
• B)the physical apparatus associated with the stationary phase
• C)the mechanism of separation
• D)all of the above

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Definitions:

Weighted Average

A calculation that takes into account the differing degrees of importance of the numbers in a data set.

FIFO and LIFO

Inventory valuation methods; FIFO (First In, First Out) assumes that the earliest goods purchased are the first to be sold, while LIFO (Last In, First Out) assumes the reverse.

LIFO Inventory

A method of inventory valuation where the last items added to inventory are the first ones assumed to be sold, typically used to decrease tax liabilities under inflationary conditions.

Ending Inventory

The value of goods available for sale at the end of an accounting period, calculated by adding new purchases to beginning inventory and then subtracting goods sold.