Vitamin B1/B6 in Whole Blood, fully automated analysis - HPLC

Order No.: 52752/F, for 960 tests
Parameters:
Vitamin B1 (TPP, thiamine pyrophosphate), Vitamin B6 (PLP, pyridoxal 5’-phosphate)

Significantly reduced hands-on time for sample preparation
Accurate and fast results for both vitamins
Each parameter safeguarded by a specific internal standard

CE-IVD validated product ready for IVDR within timeframes and transition periods specified by the IVDR-2022 regulation

Vitamin B1 (TPP, thiamine pyrophosphate)

Vitamin B6 (PLP, pyridoxal 5’-phosphate)

Clinical relevance

Vitamin B1 (thiamine) plays an important role in deriving energy from carbohydrates and fats. The active form is thiamine pyrophosphate (TPP), a coenzyme for some enzymatic reactions in carbohydrate metabolism and for pyruvate decarboxylase. TPP is also significantly involved in the oxidative degradation of glucose. The determination of the TPP concentration is more significant than measurements of total thiamine, as by this method only the physiologically active form is taken into account.

Vitamin B6 comprises pyridoxine, pyridoxamine and pyridoxal, as well as their phosphate derivatives. It is ingested with food and transferred via several enzymatic conversions into its active form, pyridoxal-5’-phosphate (PLP). PLP is involved in nearly one hundred different enzymatic reactions, among other things, as co-factor in amino acid metabolism, and in the formation of haemoglobin or neurotransmitters in the brain.

 

Product advantages

  • Automated sample preparation for minimised workload in the laboratory
  • Reliable and reproducible results with a specific internal standard for each parameter

 

This HPLC assay facilitates the combined analysis of vitamin B1 in whole blood and vitamin B6 in whole blood or plasma. Sample preparation is automated in 96 well filter plates for maximum output and minimal workload. The internal standard for each of the two parameters and special quality controls ensure precise and reliable quantification.

Chromsystems also offers two assaya that feature manual determination using HPLC: a standard version as well as a method for simplified sample preparation with pre-mixed tubes.

Alternatively, an automated method using UHPLC is also available.

More Information
Method of Analysis HPLC
Number of Tests 960
Please note The freely available information on this website, in particular on the sample preparation, are not sufficient to work with our products. Please read instructions and warning notices on products and/or instruction manuals.
Lower Limit of Quantitation

PLP 2.0 μg/l
TPP 7.0 μg/l

Upper Limit of Quantification

PLP 500 μg/l
TPP 750 μg/l

Intraassay

CV < 3 %

Interassay

CV < 5 %

Run Time 9 min
Specimen Whole Blood
Sample Preparation
  • Add 100 μl whole blood/calibrator/control and 50 μl Internal Standard Mix in a 96 Well Collection Plate.
  • Add 150 μl Extraction Reagent.
  • Shake for 4 min.
  • Remove precipitate by centrifugation (3 min, 2000 x g).
  • Transfer 75 μl of supernatant in a 96 well filter plate.
  • Add 75 μl Prep Solution and 50 μl of finisher solution.
  • Mix for 30 s.
  • Remove precipitate by centrifugation (2.5 min, 1500 x g).
  • Incubate supernatant for 45 min at 60 °C.
  • Add 100 μl Dilution Solution, mix briefly (30 s).
  • Seal plate and transfer to autosampler.
Injection Volume 25–50 μl
Flow Rate 1.5–2.3 ml/min
Column Temperature ambient (~ 25°C)
Wavelength

Start EX 320 nm, EM 415 nm,
after approx. 3.8 min switch to EX 367 nm, EM 435 nm

Parameters Vitamin B1 (TPP, thiamine pyrophosphate), Vitamin B6 (PLP, pyridoxal 5’-phosphate)
The following components are included in the kit:
General lab equipment (non-CE-IVD products), available from Chromsystems:
As a customer please login or register to gain full access.

Vitamin B1 (TPP, thiamine pyrophosphate)

Vitamin B6 (PLP, pyridoxal 5’-phosphate)

Clinical relevance

Vitamin B1 (thiamine) plays an important role in deriving energy from carbohydrates and fats. The active form is thiamine pyrophosphate (TPP), a coenzyme for some enzymatic reactions in carbohydrate metabolism and for pyruvate decarboxylase. TPP is also significantly involved in the oxidative degradation of glucose. The determination of the TPP concentration is more significant than measurements of total thiamine, as by this method only the physiologically active form is taken into account.

Vitamin B6 comprises pyridoxine, pyridoxamine and pyridoxal, as well as their phosphate derivatives. It is ingested with food and transferred via several enzymatic conversions into its active form, pyridoxal-5’-phosphate (PLP). PLP is involved in nearly one hundred different enzymatic reactions, among other things, as co-factor in amino acid metabolism, and in the formation of haemoglobin or neurotransmitters in the brain.

 

Product advantages

  • Automated sample preparation for minimised workload in the laboratory
  • Reliable and reproducible results with a specific internal standard for each parameter

 

This HPLC assay facilitates the combined analysis of vitamin B1 in whole blood and vitamin B6 in whole blood or plasma. Sample preparation is automated in 96 well filter plates for maximum output and minimal workload. The internal standard for each of the two parameters and special quality controls ensure precise and reliable quantification.

Chromsystems also offers two assaya that feature manual determination using HPLC: a standard version as well as a method for simplified sample preparation with pre-mixed tubes.

Alternatively, an automated method using UHPLC is also available.

More Information
Method of Analysis HPLC
Number of Tests 960
Please note The freely available information on this website, in particular on the sample preparation, are not sufficient to work with our products. Please read instructions and warning notices on products and/or instruction manuals.
Lower Limit of Quantitation

PLP 2.0 μg/l
TPP 7.0 μg/l

Upper Limit of Quantification

PLP 500 μg/l
TPP 750 μg/l

Intraassay

CV < 3 %

Interassay

CV < 5 %

Run Time 9 min
Specimen Whole Blood
Sample Preparation
  • Add 100 μl whole blood/calibrator/control and 50 μl Internal Standard Mix in a 96 Well Collection Plate.
  • Add 150 μl Extraction Reagent.
  • Shake for 4 min.
  • Remove precipitate by centrifugation (3 min, 2000 x g).
  • Transfer 75 μl of supernatant in a 96 well filter plate.
  • Add 75 μl Prep Solution and 50 μl of finisher solution.
  • Mix for 30 s.
  • Remove precipitate by centrifugation (2.5 min, 1500 x g).
  • Incubate supernatant for 45 min at 60 °C.
  • Add 100 μl Dilution Solution, mix briefly (30 s).
  • Seal plate and transfer to autosampler.
Injection Volume 25–50 μl
Flow Rate 1.5–2.3 ml/min
Column Temperature ambient (~ 25°C)
Wavelength

Start EX 320 nm, EM 415 nm,
after approx. 3.8 min switch to EX 367 nm, EM 435 nm

Parameters Vitamin B1 (TPP, thiamine pyrophosphate), Vitamin B6 (PLP, pyridoxal 5’-phosphate)
The following components are included in the kit:
General lab equipment (non-CE-IVD products), available from Chromsystems:
As a customer please login or register to gain full access.