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Ultraviolet-Visible Spectroscopy (UV-VIS) is a frequently used tool in many fields of chemistry. Its use is central in a wide range of techniques, from simple colorimetric assays to complex biomedical experiments. Many organic or inorganic chemicals absorb light in the range of roughly 200-800 nm, depending on their electronic structure. The technique can be used to confirm the identity of a structure, but it is more frequently used to measure the concentration of substances in a mixture.

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SKU: SQCI-003

Hexavalent Chromium

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Single: Grav. w/Analytical Confirmation
SKU: QCI-156

Turbidity QC Check Standards 5 NTU (500 mL)

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  • Brand NSI
  • Concentration 5 NTU
  • Raw Material >95% min; as available
  • Certification Single: Grav. w/Analytical Confirmation
SKU: QCI-155

Turbidity QC Check Standards 10 NTU (500 mL)

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  • Brand NSI
  • Concentration 10 NTU
  • Raw Material >95% min; as available
  • Certification Single: Grav. w/Analytical Confirmation
SKU: QCI-154

Turbidity QC Check Standards 25 NTU (500 mL)

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Single: Grav. w/Analytical Confirmation
SKU: QCI-153

Turbidity QC Check Standards 50 NTU (500 mL)

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  • Brand NSI
  • Concentration 50 NTU
  • Raw Material >95% min; as available
  • Certification Single: Grav. w/Analytical Confirmation
SKU: QCI-152

Turbidity QC Check Standards 100 NTU (500 mL)

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  • Brand NSI
  • Concentration 100 NTU
  • Raw Material >95% min; as available
  • Certification Single: Grav. w/Analytical Confirmation
SKU: QCI-147

Stable Sulfide Standard 10mg/mL

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  • Brand NSI
  • Concentration 10mg/mL
  • Raw Material >95% min; as available
  • Certification Single: Grav. w/Analytical Confirmation
SKU: QCI-147L

Stable Sulfide Standard 1mg/mL

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  • Brand NSI
  • Concentration 1mg/mL
  • Raw Material >95% min; as available
  • Certification Single: Grav. w/Analytical Confirmation
SKU: QCI-131

Drinking Water Color QC

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Single: Grav. w/Analytical Confirmation
SKU: QCI-128

Hexavalent Chromium QC Concentrate

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Single: Gravimetric w/IC Confirmation
SKU: QCI-096

Low Level Total Residual Chlorine QC Concentrate CRM

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Single: Grav. w/Analytical Confirmation
SKU: QCI-095

Hexavalent Chromium QC Concentrate CRM

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Single: Grav. w/Analytical Confirmation
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