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Precision Tools
for Analytical
Discovery

Zynra Life Sciences distributes world-class HPLC and GC columns, consumables, and accessories under the Retrix™ brand — engineered for reproducibility, built for India's growing life sciences sector.

50+
Column Chemistries
200+
Consumable SKUs
Pan-India
Distribution Network
100%
CoA with Every Lot
Compatible with
Waters HPLC/UHPLC Agilent 1100/1200/1260/1290 Shimadzu LC-2030/2040 Thermo Fisher Vanquish Agilent 6890/7890 GC Shimadzu GC-2030 PerkinElmer Clarus GC
RETRIX
High-Performance Chromatography

Retrix™ is Zynra's proprietary brand of analytical chromatography media. Every column is manufactured to exacting tolerances, shipped with a Certificate of Analysis and lot-specific test chromatogram, and backed by our in-house applications team.

Whether you are running ICH Q3C residual solvent methods on a GC or performing impurity profiling of a pharmaceutical API by UHPLC, Retrix™ gives you the selectivity, efficiency, and reproducibility that your regulatory submissions demand.

C18 / C8 / Phenyl HILIC & Ion-Pair GC Capillary USP Compliant Pharma Grade LC-MS Compatible CoA Every Lot
Reproducible Batch-to-Batch Performance
Tight particle size distribution and consistent bonding density ensure that your validated method transfers seamlessly from one column lot to the next.
Full Quality Documentation
Every Retrix™ column ships with a lot-specific CoA including theoretical plates, tailing factor, retention factor, USP symmetry, and column back-pressure data.
In-House Technical Support
Our applications scientists assist with method development, troubleshooting, and column selection — available by phone, email, or on-site visit.
Competitive Indian-Market Pricing
Premium separation performance without the import premium. Direct distribution model keeps prices sharp and delivery timelines short.
Retrix™ Product Range

Complete Chromatography Solutions

From reversed-phase HPLC columns to GC capillary columns, vials, liners and filters — Retrix™ covers your entire analytical workflow.

HPLC Columns
GC Columns
Consumables & Accessories
Retrix™ C18
Reversed Phase — High Retention

High-density octadecyl bonding on ultra-pure silica. Outstanding stability across pH 2–10. The workhorse column for pharmaceutical impurity profiling, API assay, and USP/BP method execution.

Particle Size1.7 µm · 3 µm · 5 µm
ID Options2.1 · 4.6 · 10 · 21.2 mm
Length50 · 100 · 150 · 250 mm
pH Range2 – 10
Max Pressure600 bar (1.7 µm)
Pharma QC Impurity Profiling Stability UHPLC
Retrix™ C8
Reversed Phase — Mid Hydrophobicity

Lower hydrophobicity than C18, ideal for polar compounds and basic drugs. Excellent peak shape for amines and base-labile analytes at alkaline pH without ion-pairing reagents.

Particle Size3 µm · 5 µm
ID Options2.1 · 4.6 mm
Length50 · 100 · 150 · 250 mm
pH Range2 – 9
Ideal forPolar APIs, Vitamins
Basic Drugs Vitamins Biogenic Amines HPLC
Retrix™ Phenyl
Reversed Phase — π–π Selectivity

Pi–pi interaction with aromatic and conjugated analytes gives unique selectivity complementary to C18. Use as orthogonal confirmation or for analytes that co-elute on alkyl phases.

Particle Size3 µm · 5 µm
ID Options2.1 · 4.6 mm
Length50 · 150 · 250 mm
SelectivityOrthogonal to C18
Ideal forAromatics, Steroids
Steroids Aromatic APIs Herbicides Orthogonal
Retrix™ HILIC
Hydrophilic Interaction Chromatography

Retains polar, hydrophilic analytes that pass through reversed-phase columns. Ideal for sugars, nucleotides, amino acids, polar metabolites, and highly polar APIs. MS-compatible mobile phases.

Particle Size3 µm · 5 µm
ID Options2.1 · 4.6 mm
Length100 · 150 mm
Mobile PhaseHigh organic (ACN-rich)
MS CompatibilityYes — volatile buffers
Sugars Amino Acids Polar Metabolites LC-MS
Retrix™ GC-1
100% Polydimethylsiloxane — Non-Polar

Low-bleed, non-polar stationary phase equivalent to DB-1/HP-1. General purpose for solvents, aliphatic hydrocarbons, and non-polar compounds. Excellent thermal stability up to 350°C.

Length15 · 30 · 60 m
ID0.25 · 0.32 · 0.53 mm
Film Thickness0.1 · 0.25 · 0.5 · 1.0 µm
Max Temp350°C (isothermal)
Petrochemicals Aliphatics Low Bleed
Retrix™ GC-5
5% Diphenyl / 95% PDMS — Mid Polarity

Most widely used USP GC phase (G27). Compliant with ICH Q3C residual solvent methods. Excellent peak shape across a broad range of analyte polarities. Low column bleed for MS detection.

Length15 · 30 · 60 m
ID0.25 · 0.32 · 0.53 mm
Film Thickness0.25 · 0.5 · 1.0 µm
USP PhaseG27 / G36
Residual Solvents ICH Q3C Pharma GC
Retrix™ GC-Wax
Polyethylene Glycol — Polar

High-polarity PEG stationary phase for excellent resolution of alcohols, esters, ethers, and aroma compounds. Essential for food, flavor, and fragrance analysis.

Length15 · 30 · 60 m
ID0.25 · 0.32 mm
Film Thickness0.25 · 0.5 µm
Max Temp260°C
Food & Flavour Alcohols Esters
Retrix™ GC-PLOT
Porous Layer Open Tubular — Specialty

Porous layer open tubular column for light gases, permanent gases, and VOC analysis. Available in Al₂O₃/KCl and molecular sieve variants for permanent gas separations.

Length15 · 30 m
ID0.32 · 0.53 mm
VariantsAl₂O₃/KCl · Mol. Sieve
DetectorTCD / FID
Light Gases VOC Permanent Gases
Autosampler Vials
2 mL clear & amber · 1.5 mL · 9 mm thread · LCMS-grade
Caps & Septa
Screw, crimp & snap caps · PTFE/silicone septa
Syringe Filters
PTFE · Nylon · PES · PVDF · 0.22 µm & 0.45 µm
GC Inlet Liners
Split · Splitless · Direct · Deactivated · All OEM sizes
GC Septa
High-temperature septa for Agilent, Shimadzu, PerkinElmer
Ferrules & Fittings
SS & graphite ferrules, nuts & unions for all GC systems
Guard Columns
Compatible with all Retrix™ column formats · 10 mm length
Frits & In-Line Filters
SS frits 0.5 µm, 2 µm · PEEK inline filters
Microsyringes
1 µL to 500 µL · Fixed needle & removable needle styles
96-Well Plates
Deep-well & standard plates for sample preparation
SPE Cartridges
C18 · HLB · SAX · SCX · 60 mg, 200 mg, 500 mg
Pressure Fittings
PEEK & SS fittings, nuts, connectors for UHPLC
Industries Served

Built for Your Application

Retrix™ columns and consumables are validated across the industries that demand the highest analytical standards.

Pharmaceutical

API assay, impurity profiling, dissolution testing, stability studies, content uniformity, and pharmacopoeia method compliance (USP, BP, IP, EP).

API QC Impurity Profiling ICH Q3C
Food & Beverage

Pesticide residue analysis, food additive testing, mycotoxin screening, vitamins, adulterants, preservatives, and nutritional labelling compliance.

Pesticides Mycotoxins Additives
Environmental

Drinking water quality, soil contamination profiling, air sampling, VOC analysis, trace metals speciation, and regulatory compliance monitoring.

Water Analysis VOC Soil Testing
Bioanalytical / CRO

Plasma sample analysis, metabolite identification, PK/PD studies, bioequivalence, and therapeutic drug monitoring using sensitive LC-MS/MS methods.

LC-MS/MS Bioequivalence TDM
Chemical & Petrochemical

Solvent purity testing, raw material QC, petrochemical fraction analysis, polymer additive profiling, and process monitoring in refinery labs.

Purity Testing Petrochemicals Process QC
Clinical & Diagnostics

Therapeutic drug monitoring, vitamin assays, steroid profiling, newborn screening, and clinical toxicology panels for hospital and reference laboratories.

TDM Vitamin Assays Steroids
Why Choose Zynra

Your Trusted Distribution Partner

We combine the product quality of global manufacturers with the responsiveness and expertise of a specialist local partner.

Technical Expertise

Our in-house chromatographers guide method development, column selection, and troubleshooting. We are not just a distributor — we are your applications partner.

Pan-India Reach

Express delivery to all major pharma hubs — Hyderabad, Mumbai, Pune, Ahmedabad, Bengaluru, Chennai, Delhi, and Kolkata within 48 hours.

Quality Guaranteed

Every Retrix™ column ships with a lot-specific Certificate of Analysis including N, tailing factor, retention factor, and back-pressure data. Zero compromise on quality documentation.

Competitive Pricing

Eliminate the import mark-up. Our direct distribution model ensures you receive premium analytical performance at pricing that keeps your lab's procurement budget on track.

How Retrix™ Compares
Feature Retrix™ by Zynra Imported Brands Generic Local
Lot-specific CoA ✓ Included ✓ Yes ✗ Rarely
Indian technical support ✓ In-house team − Distributor only ✗ Limited
48 hr delivery across India ✓ Yes ✗ 2–3 weeks − Variable
UHPLC columns ≤1.8 µm ✓ Available ✓ Available ✗ Rarely
Competitive Indian pricing ✓ Yes ✗ Import premium ✓ Yes
Free sample column programme ✓ Yes − Sometimes ✗ No
Testimonials

What Scientists Say

Leading researchers and QC laboratory managers trust Retrix™ columns to obtain accurate, repeatable analytical data.

"Switching to Retrix™ C18 columns reduced our tailing factors for basic APIs from 1.6 to 1.15. The stability over 500 injections saved our laboratory thousands in replacement costs."

Dr. Sarah Jenkins

Dr. Sarah Jenkins

Director of Analytical Development, Pharmax International

"For petrochemical gas separations, the Retrix™-5ms capillary columns show extremely low bleed levels at 340°C. Peak resolution between isomeric alkanes is the best we've seen."

Marcus Laurent

Marcus Laurent

Chief QA Specialist, PetroChem Labs Corp

"Validating batch compliance in our organic juice concentrates requires columns that resist rapid phase collapse in 100% aqueous phases. Retrix™-AQ columns are robust and reproducible."

Dr. Elena Rostova

Dr. Elena Rostova

Principal Investigator, BioFood Lab Technologies

Ready to upgrade your separations?
Request a free sample Retrix™ column or speak to our technical team today.

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