可溯源至美国国家标准及技术研究所 (the National Institute of Standards and Technology, NIST)标准
0221 Mass Check ® 25-OH-Vitamin D3/D2 serum control, bi-level (I + II) 2 x 5 x 1 ml 0222 Mass Check ® 25-OH-Vitamin D3/D2 serum control, level I 5 x 1 ml 0223 Mass Check ® 25-OH-Vitamin D3/D2 serum control, level II 5 x 1 ml
MassCheck® 25-OH-Vitamin D3/D2 Serum Control
Concentrations (example)
Please note: All concentrations shown here are exemplatory. They do not reflect real data for the described products. Actual concentrations depend on the production lot of each product and can exclusively be found in the product information leaflet. Please ask for these product information leaflets or download them from the service site of the Chromsystems website.
Substance
Unit
Value Level I
Range Level I
Value Level II
Range Level II
Value Level III
Range Level III
LC-MS/MS
25-OH-Vitamin D3
µg/l nmol/l
16.7 41.7
13.4-20.1 33.4-50.1
38.4 95.8
30.7-46.1 76.6-115
104 260
83.3-125 208-312
25-OH-Vitamin D2
µg/l nmol/l
17.4 42.1
13.9-20.9 33.7-50.5
38.7 93.9
31.0-46.5 75.1-113
94.6 229
75.7-114 183-275
HPLC
25-OH-Vitamin D3
µg/l nmol/l
29.0 72.4
23.2-34.8 57.9-86.9
88.9 222
71.1-107 178-266
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25-OH-Vitamin D2
µg/l nmol/l
27.7 67.1
22.2-33.2 53.7-80.6
84.3 204
67.4-101 163-245
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Instructions
These Chromsystems serum controls are designed to monitor the accuracy and precision of analytical procedures for the quantitative determination of 25-OH-vitamin D3 and 25-OH-vitamin D2 in serum/plasma. The lyophilised control is based on human serum and should be used routinely according to the instructions accompanying the assay procedure being used. While following these instructions the control is to be handled in the same manner as a patient specimen
Reconstitution
Remove the metal seal and rubber stopper from the vial. Add exactly 1.0 or 2.0 ml of double distilled water (possibly HPLC-grade) into the vial. Replace the stopper and allow to sit for 10 to 15 minutes at room temperature. Swirl the vial to dissolve the contents until homogeneity.
Storage conditions
Stored at ≤-18 °C unopened controls are stable until the expiry date which is stated on the vial labels. The reconstituted control can be stored up to one week light protected and tightly capped at +2 to +8 °C. If the controls cannot be analysed within this period, they should be aliquoted and stored frozen at ≤-18 °C (up to 3 months).
Ordering information
LC-MS/MS
0221
MassCheck® 25-OH-Vitamin D3/D2 Serum Control (lyoph.), Bi-Level
2 x 5 x 1 ml
0222
MassCheck® 25-OH-Vitamin D3/D2 Serum Control (lyoph.), Level I
5 x 1 ml
0223
MassCheck® 25-OH-Vitamin D3/D2 Serum Control (lyoph.), Level II
5 x 1 ml
0256
MassCheck® 25-OH-Vitamin D3/D2 Serum Control (lyoph.), Level III
5 x 1 ml
HPLC
0028
25-OH-Vitamin D3/D2 Serum Control (lyoph.), Bi-Level
2 x 5 x 2 ml
0029
25-OH-Vitamin D3/D2 Serum Control (lyoph.), Level I
5 x 2 ml
0030
25-OH-Vitamin D3/D2 Serum Control (lyoph.), Level II