Malvern Instruments Mastersizer X, Руководство пользователя

Страница: 57 / 102

Solvent name
The Solvent name field defines the name of any solvent used to pre-disperse the
sample into a slurry before it is added to the dispersant.
The length of the solvent name is limited to twenty five characters.
Sample’s units
This parameter defines the measurement quantity for the current sample.
The permitted inputs are “mg”, “ml” or “drops”.
Measurement Quantity
The measurement quantity dictates the amount of sample the user is required to
add to the Dispersion Unit during the inspect phase of the measurement. The
units are defined by the “Sample’s Units” entry in the SOP.
The maximum expected value is 9999 sample units.
Dispersant Quantity
The Dispersant quantity field defines the amount of dispersant which must be
added to the sample unit prior to aligning the instrument and measuring the
background. Bearing in mind that the maximum capacity of the Dispersion Unit
is 130ml this figure will be 130 ml less the measurement quantity. However, a
minimum of 40 ml is required in order for the system to circulate liquid to allow
a background to be obtained.
Dispersant Name
This defines the dispersant to be used in the Dispersion Unit during the course of
the measurement. The dispersant is added to the Dispersion Unit prior to the
alignment stage.
The dispersant name can be up to 25 characters.
Surfactant Name
The Surfactant name defines any surfactant added to the sample to aid the
dispersion. If “None” is added as the surfactant name, the user is not prompted to
enter a Surfactant Quantity or Surfactant Concentration.
C H A P T E R 7
Q S S M A L L V O L U M E S A M P L E D I S P E R S I O N U N I T
P a g e 7 . 3