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What is the column method?
is this the column method for addition / subtraction or the column method for multiplication?? The term column method simply means to stack in columns so that the units; tens and hundreds are all lined up.
Difference between tray and packed columns?
Packed column consist of porous substance as a packing in the column which provides contact between the fluids used,while different types of trays are used depending on the ease of separation instead of a packing in a usual tray column.
How do you select hplc column in method development?
firs you mist know the polarity for sample, wen the sample polar you can use "RP" column like C18 or C8 ( C18 first in pharmaceutical) . wen sample non polar use "NP" column like silica or CN Column. after that you can change the column in same packing to solve tailing, retention time, Resolution..... or any problem by change column length, particle size or carbon loud
What is the method a physician uses to control a nose bleed?
Packing
What is a compact method in maths?
compact method is another word for column method
What is the addition or subtraction method?
Column method can be used for both !
Which column illustrates the primary and subsidiary hazards of a hazardous material?
Which one of the following three hazards takes precedence? -a toxic subatance (class 6.1 packing group i - dermal -a flammabel liquid ( class 3 packing group ii) - a corrosive substance ( class 8 liquid packing group ii)
What problems may arise in the use from a poorly packed liquid chromatography column?
The effect of packing a chromatographic column unevenly will cause the flow to be uneven down the column and lead to poor separation.
What is the easist method to select a column in Excel?
Click on the letter at the top of the column; that will select the entire column.
What is liquid holdup in a column?
'Liquid Hold-up' in a distillation column refers to down-coming liquid (liquid traffic travelling down the column) becoming trapped in the column's packing material. Packing material is used in distillation columns to increase the contact efficiency between the down-coming liquid stream(s) and the up-flowing vapour stream(s). The packing materials do this by increasing the surface-to-volume ratio over which the vapour and liquid streams come into contact in order to promote separation between the more volatile and less volatile components in the column. The down-coming liquid can become trapped in the packing material for a number of reasons. One example is when liquid becomes trapped in crack formations or fractures of the packing material (which can occur during normal or non-steady state column operation). When the liquid becomes trapped in these cracks/crevices, contact with the up-flowing vapour stream becomes non-existent and the liquid is literally 'held up' from travelling down the column.
What is an Ionic column?
it is a method used to purify protein
What is method of curtailment of steel bars in RCC column in multi storeyed building?
column curtailment details
