FTIR Attenuated Total Reflectance (ATR)

Attenuated total reflection (ATR) is a method that allows the direct measurement of samples for FTIR

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Streamline FTIR Sample Analysis with ATR Technology

Attenuated Total Reflection Fourier Transform Infrared Spectroscopy (ATR-FTIR) is one of the most widely used techniques for material identification and chemical characterization. infrared light passes through an ATR crystal, and the evanescent IR wave interacts with a sample placed directly on its surface. ATR eliminates the need for extensive sample preparation, allowing laboratories to quickly analyze solids, liquids, powders, polymers, pharmaceuticals, and other materials with minimal effort. Whether performing quality control, failure analysis, research, or routine material verification, ATR-FTIR provides rapid, reliable spectral data while reducing sample handling and preparation time.

Spectra obtained by ATR can change based on the amount of pressure or have a small shift based on the crystal material. Shimadzu’s LabSolutions IR Software offers an ATR correction to correct for the interactions from the crystal material.

Additional precautions must be taken for quantitative measurements using an ATR. Due to the minor shifting of peaks with an ATR accessory, the intensity of a peak alone cannot be used for quantitation.

 

Available Models

FTIR ATR Accessories - QATR-S

QATR-S

  • Compatible Models: IRSpirit Series
  • Available crystal materials: Diamond (High Through Put), Germanium, Zinc Selenide, Silicon
  • Types of measurable samples: Powders, solids, films, liquids

 

FTIR ATR Accessory: QATR-10

QATR-10

  • Compatible Models: IRXross, IRTracer-100, IRAffinity-1S
  • Available crystal materials: Diamond (Extended Range), Diamond (High Through Put), Germanium, Zinc Selenide, Silicon
  • Types of measurable samples: Powders, solids, films, liquids

 

FTIR ATR Accessory: Pike IRIS

Pike IRIS

  • Compatible Models: IRXross, IRTracer-100, IRAffinity-1S, IRSpirit Series
  • Available crystal materials: Diamond, Extended range diamond and Germanium
  • Types of measurable samples: Powders, solids, films, liquids

 

FTIR ATR Accessory: HATR-10

HATR-10

  • Compatible Models: IRXross, IRTracer-100, IRAffinity-1S
  • Available crystal materials: Germanium, Zinc Selenide, KRS-5
  • Types of measurable samples: Different sample holder for liquids and solids required

 

FTIR ATR Accessory: MIRacle - 10

MIRacle-10

  • Compatible Models: IRXross, IRTracer-100, IRAffinity-1S
  • Available crystal materials: Diamond, Germanium, Zinc Selenide
  • Types of measurable samples: Powders, solids, films, liquids

 

FTIR Accessory: Gateway Horizontal ATR Accessory

Gateway Horizontal ATR Accessory

  • Compatible Models: IRXross, IRTracer-100, IRAffinity-1S, IRSpirit Series
  • Available crystal materials: ZnSe
  • Types of measurable samples: Different sample holder for liquids and solids required
FTIR ATR Accessory: Golden Gate

Golden Gate

  • Compatible Models: IRXross, IRTracer-100, IRAffinity-1S, IRSpirit Series
  • Available crystal materials: Diamond, Diamond with Zinc Selenide, Germanium with Zinc Selenide
  • Types of measurable samples: Powders, solids, films, liquids

 

FTIR Accessory: Gateway Horizontal ATR Accessory

Gateway Horizontal ATR Accessory

  • Compatible Models: IRXross, IRTracer-100, IRAffinity-1S, IRSpirit Series
  • Available crystal materials: ZnSe
  • Types of measurable samples: Different sample holder for liquids and solids required

 

Video - How to Use ATR for FTIR Measurement

Frequently Asked Questions About ATR-FTIR Spectroscopy

What is ATR-FTIR spectroscopy?

ATR-FTIR is an analytical technique used to identify and characterize materials based on infrared absorption patterns.

 

What are the advantages of ATR over traditional FTIR sampling methods?

Minimal sample preparation, rapid analysis, non-destructive testing capabilities, and broad sample compatibility.

 

What types of samples can be analyzed using ATR?

Powders, liquids, plastics, polymers, pharmaceuticals, chemicals, food ingredients, coatings, fibers, and biological materials.

 

What is the best ATR crystal for FTIR analysis?

Diamond for durability, ZnSe for general-purpose testing, and Germanium for highly absorbing samples and surface analysis.

 

How much sample is required for ATR-FTIR?

Only a small sample amount is typically required, often just a few drops for liquids.

 

Can ATR-FTIR analyze liquids?

Yes, ATR-FTIR is highly effective for liquids including solvents, oils, beverages and formulations.

 

Is ATR-FTIR a non-destructive analytical technique?

Generally yes, as samples can often be recovered after measurement.

 

What industries use ATR-FTIR spectroscopy?

Pharmaceutical, chemical, environmental, food and beverage, polymer, forensic and academic laboratories.

 

How does ATR improve FTIR workflow efficiency?

ATR eliminates many sample preparation steps, enabling faster analysis and greater throughput.

 

What Shimadzu FTIR systems support ATR accessories?

IRSpirit Series, IRXross and IRTracer FTIR systems.

 

Where or How to buy Shimadzu FTIR/ATR Accessories

Ready to learn more? Reach out to a qualified sales representative for pricing, technical specifications, application support, and purchasing information.

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