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42
          Modes of operation of LB Instrument
              based on protective-plate method

1. Surface pressure-area isotherm and monolayer stability.
2. Surface potential (Kelvin probe).
3. Deposition of one component LB films.
4. Deposition by Langmuir-Schaefer technique.
5. Deposition of alternate-monolayer structrures [ (AB)
n, (AAAB)n, (AABA)n, (AABB)n, and so on ].
6. Deposition of LB films with adsorption of soluble compounds (S
1 and S2) [ (AS1AAS2A)nAAAA, (AS1AAAAS2A)nAA, and so on ].
7. Deposition of alternate-monolayer structures with adsorption of soluble compounds [ (ABAS
1AAS2B)nAB, (AABS1ABS2B)nBB, and others ].

Deposition formula (point 7)

[L1 w A1 w A2 w R1 w A1 w A2 w R2 w A1 w A2 w L2 w A1 w A2 w]n [L3 R3]m
+ - + + - - + - - - - - - - - - - - - - - - - - - -

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