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ROMIL-UpS™ Acetonitrile Ultra LC is an ultra-high purity solvent specifically engineered for critical chromatographic and mass spectrometric applications, including HPLC, UHPLC, and LC-MS. Manufactured under stringent UpS™ (Ultra Purity Solvents) protocols, this grade delivers exceptionally low UV absorbance, ultra-low residue levels, minimal baseline drift, and extremely low ionic and fluorescent impurities.
It is ideally suited for gradient elution methods, trace-level detection, and high-sensitivity analytical workflows, where solvent purity directly impacts reproducibility and data integrity.
Key Features
- Ultra LC Grade – Designed for the most demanding analytical applications
- Exceptional UV Transparency – Ideal for low-wavelength detection
- Ultra-Low Water & Residue Levels – Enhanced chromatographic performance
- LC-MS Compatible – Passes suitability testing
- Extremely Low Ionic & Fluorescent Impurities
- Excellent Gradient Performance – Minimal baseline drift and noise
Analytical Specifications
General Purity
| Parameter | Specification |
|---|---|
| Assay | >99.9% |
| Water | <0.005% |
| Residue after Evaporation | <0.0001% |
| Acidity | <0.0005 meq/g |
| Alkalinity | <0.00006 meq/g |
UV Transparency
| Wavelength | Transmission |
|---|---|
| 190 nm | >18% |
| 193 nm | >50% |
| 197 nm | >80% |
| 215 nm | >95% |
| 230–400 nm | >99% |
Gradient & Baseline Performance
| Test | Specification |
|---|---|
| Gradient Use Test (205 nm) | <0.002 AU |
| Gradient Use Test (254 nm) | <0.0005 AU |
| Baseline Drift @ 205 nm | <0.02 AU |
Fluorescence Impurities (as Quinine)
| Wavelength | Specification |
|---|---|
| 254 nm | <1 ppb |
| 365 nm | <1 ppb |
Trace Ionic Impurities
| Element | Limit |
|---|---|
| Ag, Cu, Fe, K, Mg, Mn, Ni, Pb, Zn | <10 ppb each |
| Al, Ca | <25 ppb each |
| Na | <50 ppb |
LC-MS Compatibility
- Suitability for LC-MS: Passes test
Applications
- High-performance liquid chromatography (HPLC)
- Ultra-high-performance liquid chromatography (UHPLC)
- LC-MS and LC-MS/MS
- Critical gradient elution methods
- Trace-level and impurity analysis
- Pharmaceutical, environmental, and research laboratories
Available Pack Sizes & Product Codes
| Pack Size | Product Code |
|---|---|
| 1 L | H050M |
| 2.5 L | H050L |
ROMIL-UpS™ Acetonitrile Ultra LC is a premium-grade solvent designed for laboratories that demand maximum sensitivity, reproducibility, and analytical confidence. With outstanding UV transparency, ultra-low impurities, and proven LC-MS compatibility, it is the solvent of choice for critical gradient HPLC, UHPLC, and advanced mass spectrometry workflows.
Flyer
ROMIL-UpS™ Acetonitrile Ultra LC is an ultra-high purity solvent specifically engineered for critical chromatographic and mass spectrometric applications, including HPLC, UHPLC, and LC-MS. Manufactured under stringent UpS™ (Ultra Purity Solvents) protocols, this grade delivers exceptionally low UV absorbance, ultra-low residue levels, minimal baseline drift, and extremely low ionic and fluorescent impurities.
It is ideally suited for gradient elution methods, trace-level detection, and high-sensitivity analytical workflows, where solvent purity directly impacts reproducibility and data integrity.
Key Features
- Ultra LC Grade – Designed for the most demanding analytical applications
- Exceptional UV Transparency – Ideal for low-wavelength detection
- Ultra-Low Water & Residue Levels – Enhanced chromatographic performance
- LC-MS Compatible – Passes suitability testing
- Extremely Low Ionic & Fluorescent Impurities
- Excellent Gradient Performance – Minimal baseline drift and noise
Analytical Specifications
General Purity
| Parameter | Specification |
|---|---|
| Assay | >99.9% |
| Water | <0.005% |
| Residue after Evaporation | <0.0001% |
| Acidity | <0.0005 meq/g |
| Alkalinity | <0.00006 meq/g |
UV Transparency
| Wavelength | Transmission |
|---|---|
| 190 nm | >18% |
| 193 nm | >50% |
| 197 nm | >80% |
| 215 nm | >95% |
| 230–400 nm | >99% |
Gradient & Baseline Performance
| Test | Specification |
|---|---|
| Gradient Use Test (205 nm) | <0.002 AU |
| Gradient Use Test (254 nm) | <0.0005 AU |
| Baseline Drift @ 205 nm | <0.02 AU |
Fluorescence Impurities (as Quinine)
| Wavelength | Specification |
|---|---|
| 254 nm | <1 ppb |
| 365 nm | <1 ppb |
Trace Ionic Impurities
| Element | Limit |
|---|---|
| Ag, Cu, Fe, K, Mg, Mn, Ni, Pb, Zn | <10 ppb each |
| Al, Ca | <25 ppb each |
| Na | <50 ppb |
LC-MS Compatibility
- Suitability for LC-MS: Passes test
Applications
- High-performance liquid chromatography (HPLC)
- Ultra-high-performance liquid chromatography (UHPLC)
- LC-MS and LC-MS/MS
- Critical gradient elution methods
- Trace-level and impurity analysis
- Pharmaceutical, environmental, and research laboratories
Available Pack Sizes & Product Codes
| Pack Size | Product Code |
|---|---|
| 1 L | H050M |
| 2.5 L | H050L |
ROMIL-UpS™ Acetonitrile Ultra LC is a premium-grade solvent designed for laboratories that demand maximum sensitivity, reproducibility, and analytical confidence. With outstanding UV transparency, ultra-low impurities, and proven LC-MS compatibility, it is the solvent of choice for critical gradient HPLC, UHPLC, and advanced mass spectrometry workflows.
Flyer
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Spécifications
| Pack Size | Glass bottle, 1L, Glass bottle, 2.5L |