APPLICATION

Project Hub

Workspace /Users/xiweng/MSOperator/workspace

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QUICK START & SAMPLE DATA Preconfigured Video Project & 24 LC-MS Sample Datasets
📦
24 .LCD Files

Sample Data Package (24 Files)

Includes Soil (1-5), Water (1-6), SPAS (1-3), Blanks, and 6-point calibration standards (0.5-50 ppb), with preview and instant download.

HD MSOperator
port...demo

Sample Selection

Soil 4__004.lcd
TIC (Total Ion Chromatogram)
TIC · Max: 1.85e6 · 8.00 min
EIC (Target MRM: PFOS 499.1 > 80.0)
Peak RT: 6.095 min · Area: 63,572 · S/N: 17.8
/Users/xiweng/MSOperator/workspace/projects/f6425fa4eed8...
Chrom. Raw File Sample Name Parallel Group Sample Type Sample Level Run Started At Run Ended At Run Duration
Compound Name Type Target m/z Exp. RT (min) Left RT Delta Right RT Delta Polarity Acq. Start (min) Acq. End (min) Dwell (ms)
Internal Standard & Target Association
Target Internal standard IS/TD concentration
Level PFBA (ppb) PFPeA (ppb) PFBS (ppb) PFHxA (ppb) PFHpA (ppb) PFOA (ppb) 6:2FTSA (ppb) PFOS (ppb) PFNA (ppb) 8:2FTSA (ppb)
L1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5
L2 1 1 1 1 1 1 1 1 1 1
L3 5 5 5 5 5 5 5 5 5 5
L4 10 10 10 10 10 10 10 10 10 10
L5 20 20 20 20 20 20 20 20 20 20
L6 50 50 50 50 50 50 50 50 50 50
Target Model Weighting Origin Quantitation

Integration defaults

Stored with the method now, execution will be consumed by the Data Process module.

min
min

Quality Control Acceptance Criteria

Automated acceptance criteria thresholds for PFAS quantitation.

Signal-to-Noise (S/N) Cutoff
Active
Peak Height Minimum Threshold
counts
Active
Retention Time Window Shift
≤ ± min
Active
Calibration Linearity (R²)
Active
Method:
No analysis results
View: Sample Type:
Target: PFOS ISTD: MPFOS_IS
S/N Criteria: ≥100 Optimal 10-99 >LOQ 3-10 Near LOQ <3 LOD Fail
Status Raw File Sample Name Type Level Acq. Date Time Exp. Conc. RT Resp. QIR% MI S/N Area ISTD Area Calc. Conc. Final Conc.
PFOS quantifier SIM
Soil 4__004.lcd    RT: 6.095 min    S/N: 17.6
PFOS_IS SIM
Soil 4__004.lcd    RT: 6.090 min    S/N: 139.9
Mode: Type: Weight: Origin:
y = 1.57336 * x + (-0.000278556)      R² = 0.999448      PFOS (ppb)
/Users/ruiwaing/.MSOperator/workspace/projects/fb42594ecc83
PFAS MOLECULAR STRUCTURE & EPA REGULATORY PROFILE

Perfluorooctanesulfonic acid (PFOS)

CAS: 1763-23-1 EPA MCL: 4.0 ppt
Carbon Backbone: C8 Fully Fluorinated Tail · Anionic Sulfonate Head Group
Formula C8HF17O3S Exact Mass 499.94 g/mol
Quant Transition 499.1 > 80.0 [SO3]⁻ (CE: -45 eV) Qualifier Transition 499.1 > 99.0 [FSO3]⁻ (Ratio: 44.0%)
Assigned ISTD M8PFOS_B (13C8-PFOS) EPA 533 Target Class Perfluoroalkanesulfonic acid (PFSA)
Environmental Toxicity PBT (Persistent, Bioaccumulative, Toxic) · Stockholm Convention POP Annex B
SCIENTIFIC REVIEW

Statistics

Evaluate calibration, quality control and quantitative performance across a batch.

Calibration curve

Click to Open

Review regression, weighting, residuals and back-calculated accuracy.

Batch QC

Click to Open

Summarize blanks, standards, QCs and acceptance status.

Result distribution

Click to Open

Explore variation, outliers and concentration distributions.

Comparison

Click to Open

Compare methods, batches, sample groups or instruments.

EPA Health Advisory & HI

Click to Open

Check 2024 EPA National Primary Drinking Water MCLs (4.0 ppt) and calculate cumulative Hazard Index (HI).

Spike Recovery & Matrix Effects

Click to Open

Evaluate EPA 533 Matrix Spike (MS/MSD) recovery (70-130%) and ionization suppression factors across soil, water and sludge.

LABORATORY UTILITIES

Tools

Access vendor integration, conversion, method and export utilities.

Click to Open

Vendor readers

Manage instrument-specific readers and compatibility information.

Click to Open

Data converter

Convert supported acquisitions to open interchange formats.

Click to Open

Method utilities

Inspect, validate and reuse quantitative method definitions.

Click to Open

Export

Create shareable tables, figures and laboratory reports.

Click to Open

System Suitability (SST)

Automated instrument diagnostic: column pressure, theoretical plates (N > 2500), peak asymmetry, and RT precision.

Click to Open

MDL & LOQ Calculator

Determine Method Detection Limits and LOQ per EPA 40 CFR 136 Appendix B (7 replicates, Student's t-test).