Package index • measure.sec

Visualization

Publication-ready plots for SEC/GPC results

sec_results(): Create SEC Results Object
autoplot(<sec_results>): Automatic Plot for SEC Results
plot_sec(): Quick SEC Plot
plot_sec_chromatogram(): Plot SEC Chromatogram
plot_sec_mwd(): Plot Molecular Weight Distribution
plot_sec_multidetector(): Plot Multi-Detector SEC Overlay
plot_sec_conformation(): Plot SEC Conformation Data
plot_sec_calibration(): Plot SEC Calibration Curve
plot_sec_composition(): Plot SEC Composition Distribution

Detector Processing

Recipe steps for SEC detector signal processing

step_sec_ri(): RI Detector Processing for SEC
step_sec_uv(): UV Detector Processing for SEC
step_sec_dad(): Diode Array Detector Processing for SEC
step_sec_mals(): Multi-Angle Light Scattering Processing for SEC
step_sec_lals(): Low-Angle Light Scattering Processing for SEC
step_sec_rals(): Right-Angle Light Scattering Processing for SEC
step_sec_dls(): Dynamic Light Scattering Processing for SEC
step_sec_viscometer(): Differential Viscometer Processing for SEC
step_sec_detector_delay(): Correct Inter-Detector Volume Delays

Signal Processing

Baseline correction and signal enhancement

step_sec_baseline(): SEC/GPC Baseline Correction
step_sec_band_broadening(): Band Broadening Correction for SEC
step_sec_concentration(): Convert Detector Signal to Concentration
step_sec_exclude_regions(): SEC/GPC Region Exclusion
step_sec_flow_marker(): Flow Marker Correction for SEC/GPC
step_sec_integration_window(): SEC/GPC Integration Window
estimate_sigma(): Estimate Spreading Parameter from Narrow Standard

Standards Helpers

Functions for matching and normalizing calibration standard names

get_recognized_standards(): Get Recognized SEC Calibration Standards
get_standard_names(): Get Standard Names
get_standard_type(): Get Standard Type
normalize_standard_name(): Normalize Standard Names for Matching
match_standards(): Match Sample Names to Recognized Standards
is_standard(): Check if Sample Names Contain Standards
auto_detect_standards(): Auto-Detect Standards in a Data Frame

Peak Detection

Peak detection, refinement, and deconvolution

step_sec_peaks_detect(): SEC/GPC Peak Detection
step_sec_peaks_refine(): Refine SEC/GPC Peak Boundaries
step_sec_peaks_deconvolve(): SEC/GPC Peak Deconvolution

Calibration

Molecular weight calibration methods

step_sec_conventional_cal(): Conventional Calibration for SEC Using Narrow Standards
step_sec_broad_standard(): Broad Standard Calibration for SEC/GPC
step_sec_universal_cal(): Universal Calibration for SEC
save_sec_calibration(): Save SEC Calibration Parameters
load_sec_calibration(): Load SEC Calibration Parameters

Molecular Weight Calculations

MW averages, distributions, and fractions

step_sec_mw_averages(): Calculate Molecular Weight Averages for SEC/GPC
step_sec_mw_distribution(): Generate Molecular Weight Distribution Curve
step_sec_mw_fractions(): Calculate Molecular Weight Fractions for SEC/GPC

Composition Analysis

Copolymer and composition analysis

step_sec_composition(): Calculate Copolymer Composition from Detector Signals
step_sec_uv_ri_ratio(): Calculate UV/RI Ratio for Composition Analysis
step_sec_intrinsic_visc(): Calculate Intrinsic Viscosity for SEC

Protein SEC

Biopharmaceutical SEC analysis

step_sec_protein(): Protein SEC Analysis Workflow
step_sec_aggregates(): Quantify Protein Aggregates and Fragments in SEC
step_sec_oligomer(): Oligomeric Species Analysis for Protein SEC

Quality Control Functions

Functions for system suitability testing and QC

measure_sec_resolution(): Calculate Peak Resolution
measure_sec_plate_count(): Calculate Theoretical Plate Count
measure_sec_asymmetry(): Calculate Peak Asymmetry Factor
measure_sec_recovery(): Calculate Mass Recovery
measure_sec_suitability(): System Suitability Test for SEC
measure_sec_column_performance(): Column Performance Metrics for SEC

Polymer Analysis Functions

Functions for polymer characterization

measure_mh_parameters(): Estimate Mark-Houwink Parameters
measure_branching_index(): Calculate Branching Index
measure_branching_frequency(): Calculate Branching Frequency from Zimm-Stockmayer Theory
measure_branching_model_comparison(): Compare Branching Models
measure_rg_mw_scaling(): Fit Rg-MW Scaling Relationship
measure_conformation_data(): Create Conformation Plot Data

Export Functions

Data extraction and export utilities

measure_sec_slice_table(): Extract Slice-by-Slice SEC Data
measure_sec_summary_table(): Generate SEC Summary Table
measure_sec_compare(): Compare Multiple SEC Samples
measure_sec_report(): Generate SEC Analysis Report
get_sec_template(): Get Path to SEC Report Template
list_sec_templates(): List Available SEC Report Templates

Datasets

Example datasets for SEC analysis

sec_triple_detect: Multi-Detector SEC Data
sec_calibration_standards: SEC Calibration Standards - Complete Dataset
sec_ps_standards: SEC Polystyrene Calibration Standards
sec_pmma_standards: SEC PMMA Calibration Standards
sec_copolymer: Copolymer SEC Data for Composition Analysis
sec_protein: Protein SEC Data with Aggregates
sec_branched: Branched Polymer SEC Data
sec_system_suitability: System Suitability Test Data

Raw Tutorial Datasets

Realistic raw chromatogram data for tutorials

sec_raw_standards: Raw SEC Calibration Standards
sec_raw_unknowns: Raw SEC Unknown Samples with Known Molecular Weights
sec_raw_multidetector: Raw Multi-Detector SEC Data