Anti-Hbc IgM Hormone Test Kit – ENZO
৳8,000.00 ৳7,700.00
Packaging Size: ( 2×50) ml
Origin: Spain
Brand : Cromatest / Linear
Packaging Type: Bottle
Test/Pack: 100Test
Method: UV enzymatic method KINETIC
Category: Laboratory
Subcategory: No Subcategory
Lactate dehydrogenase (LD/LDH) catalyzes the reduction of pyruvate to lactate (P-L) in the presence of reduced nicotinamide adenine dinucleotide (NADH) at pH 7.5.
The reaction is monitored kinetically at 340 nm by the rate of decrease in absorbance resulting from the oxidation of NADH to NAD+ proportional to the activity of LD present in the sample.
R1: LDH substrate. TRIS buffer 100 mmol/L pH 7.5, pyruvate
2.75 mmol/L, sodium chloride 222 mmol/L.
R2: LDH coenzyme. NADH 1.55 mmol/L
STORAGE AND STABILITY: Store at 2-8ºC.The Reagents are stable until the expiry date stated on the label.
Working reagent. Mix 4 mL of R1 + 1 mL of R2. Stable for 2 months at 2-8ºC. Protected from light.
Discard the reagent if presents an absorbance below 1.200 at 340 nm against distilled water or if it fails to recover the declared values of control sera.
Serum free of hemolysis separated from the cells as soon as possible after collection. The use of heparin and citrate as anticoagulants have been reported to falsely elevate LD activity.
Freezing results in loss of activity of the enzyme.
INTERFERENCES:
-Hemolysis results in the release of LD from red cells into the body fluid, giving falsely high
-Hyperbilirubinemia does not affect the LD
High concentrations of urea inhibit the enzyme
| Reaction temperature | 30/37ºC |
| Working reagent Sample or control | 1.0 mL 20 mL |
| Temperature | 37ºC | 30ºC | ||||
| Adults | 207-414 U/L | (3.40-6.80 mKat/L) | 140-280 U/L | (2.30-4.70 mKat/L) |
| U/L | Within-run | Between-run | ||||
| Mean | 281 | 1.65 | 1130 | 281 | 430 | 980 |
| SD | 1.3 | 2.42 | 2.64 | 2.3 | 2.71 | 3.06 |
| CV% | 0.46 | 0.52 | 0.23 | 0.82 | 0.63 | 0.31 |
| N | 10 | 10 | 10 | 8 | 8 | 8 |
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account number: 0290930920339
number : 0932920239039
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