Normal Pulse Voltammetry
This page documents the Normal Pulse Voltammetry (NPV) method.
pypalmsens.NormalPulseVoltammetry
Create normal pulse voltammetry method parameters.
In Normal Pulse Voltammetry (NPV) a potential scan is conducted in pulses by consistently increasing the pulse amplitude. The influence of diffusion limitation on your i-E curve (Cottrel behavior) is removed. NPV is normally more sensitive than LSV, since the diffusion layer thickness will be smaller, resulting in a higher faradaic current.
Methods:
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to_dict–Return the technique instance as a new key/value dictionary mapping.
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from_dict–Structure technique instance from dict.
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from_method_id–Create new instance of appropriate technique from method ID.
Attributes:
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general(General) –Sets general/other settings.
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multiplexer(Multiplexer) –Set the multiplexer settings.
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data_processing(DataProcessing) –Set the data processing settings.
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measurement_triggers(MeasurementTriggers) –Set the trigger at measurement settings.
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equilibrion_triggers(EquilibrationTriggers) –Set the trigger at equilibration settings.
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ir_drop_compensation(IrDropCompensation) –Set the iR drop compensation settings.
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post_measurement(PostMeasurement) –Set the post measurement settings.
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bipot(BiPot) –Set the bipot settings.
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versus_ocp(VersusOCP) –Set the versus OCP settings.
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pretreatment(Pretreatment) –Set the pretreatment settings.
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current_range(CurrentRange) –Set the autoranging current.
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id(Literal['npv']) –Unique method identifier.
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equilibration_time(float) –Equilibration time in s.
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begin_potential(float) –Potential where the scan starts at in V.
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end_potential(float) –Potential where the scan stops at in V.
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step_potential(float) –Potential step size in V.
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pulse_time(float) –Pulse time in s.
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scan_rate(float) –The applied scan rate (potential/time) in V/s.
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enable_bipot_current(bool) –Enable bipot current.
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record_auxiliary_input(bool) –Record auxiliary input.
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record_cell_potential(bool) –Record cell potential.
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record_we_potential(bool) –Record applied working electrode potential.
general
class-attribute
instance-attribute
Sets general/other settings.
multiplexer
class-attribute
instance-attribute
multiplexer: Multiplexer = Field(default_factory=Multiplexer)
Set the multiplexer settings.
data_processing
class-attribute
instance-attribute
data_processing: DataProcessing = Field(default_factory=DataProcessing)
Set the data processing settings.
measurement_triggers
class-attribute
instance-attribute
measurement_triggers: MeasurementTriggers = Field(default_factory=MeasurementTriggers)
Set the trigger at measurement settings.
equilibrion_triggers
class-attribute
instance-attribute
equilibrion_triggers: EquilibrationTriggers = Field(default_factory=EquilibrationTriggers)
Set the trigger at equilibration settings.
ir_drop_compensation
class-attribute
instance-attribute
ir_drop_compensation: IrDropCompensation = Field(default_factory=IrDropCompensation)
Set the iR drop compensation settings.
post_measurement
class-attribute
instance-attribute
post_measurement: PostMeasurement = Field(default_factory=PostMeasurement)
Set the post measurement settings.
bipot
class-attribute
instance-attribute
Set the bipot settings.
versus_ocp
class-attribute
instance-attribute
Set the versus OCP settings.
pretreatment
class-attribute
instance-attribute
pretreatment: Pretreatment = Field(default_factory=Pretreatment)
Set the pretreatment settings.
current_range
class-attribute
instance-attribute
current_range: CurrentRange = Field(default_factory=CurrentRange)
Set the autoranging current.
equilibration_time
class-attribute
instance-attribute
equilibration_time: float = 0.0
Equilibration time in s.
begin_potential
class-attribute
instance-attribute
begin_potential: float = -0.5
Potential where the scan starts at in V.
end_potential
class-attribute
instance-attribute
end_potential: float = 0.5
Potential where the scan stops at in V.
step_potential
class-attribute
instance-attribute
step_potential: float = 0.1
Potential step size in V.
pulse_time
class-attribute
instance-attribute
pulse_time: float = 0.01
Pulse time in s.
This duration needs to be set
shorter than 0.5 * interval_time where the interval time is equal to
potential_step / scan_rate.
scan_rate
class-attribute
instance-attribute
scan_rate: float = 1.0
The applied scan rate (potential/time) in V/s.
The maximum scan rate depends on the value of step_potential step and pulse_time.
The scan rate must be < (step_potential / pulse_time).
enable_bipot_current
class-attribute
instance-attribute
enable_bipot_current: bool = False
Enable bipot current.
record_auxiliary_input
class-attribute
instance-attribute
record_auxiliary_input: bool = False
Record auxiliary input.
record_cell_potential
class-attribute
instance-attribute
record_cell_potential: bool = False
Record cell potential.
Counter electrode vs ground.
record_we_potential
class-attribute
instance-attribute
record_we_potential: bool = False
Record applied working electrode potential.
Reference electrode vs ground.
to_dict
Return the technique instance as a new key/value dictionary mapping.
Source code in src/pypalmsens/_methods/base.py
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from_dict
classmethod
Structure technique instance from dict.
Opposite of .to_dict()
Source code in src/pypalmsens/_methods/base.py
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from_method_id
classmethod
from_method_id(id: str) -> BaseTechnique
Create new instance of appropriate technique from method ID.
Source code in src/pypalmsens/_methods/base.py
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