Liquid Quality Controls

Quality controls in liquid format eliminate the need for reconstitution, a necessary step with lyophilized, or freeze-dried, controls. Liquid controls are used in clinical chemistry labs, research organizations, diagnostic manufacturers, and in point-of-care testing to detect deviations in reagents or analyzers, thus ensuring the accuracy of test results. Liquid controls may be assayed or unassayed, human or bovine, and may cover a single analyte or over 100 parameters, including proteins, cardiac markers, CRP, lipids, blood gases, immunoassays, and electrophoresis. Controls with target values for an array of hormones and therapeutic drugs, tumor marker controls, and urine and urinalysis controls are also available.

What to Consider When Choosing a Liquid Quality Control?

Generally, liquid-format controls have a two-year unopened shelf life, and may be liquid frozen at –20 °C or liquid stable at +2–8 °C. Eliminating reconstitution saves time and minimizes the risk of pipetting errors.

Search and compare liquid quality controls:

CompanyBio-Rad LaboratoriesBio-Rad LaboratoriesBio-Rad LaboratoriesBio-Rad Laboratories
ItemLiquichek™ Qualitative Urine Toxicology Control, Negative LevelLiquichek Blood Gas Control, Level 1Lyphochek® Immunoassay Plus Control, Trilevel(4 of each level)qUAntify Control, Bilevel
Catalog Number454571370975
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DescriptionAssayed, liquid human urine negative control for monitoring precision of qualitative urine toxicology assays (6 x 3 mL)Assayed, aqueous control for blood gas on blood gas instrumentation; level 1 of 3 (30 x 1.7 mL)Assayed, liquid human serum based control that has the most comprehensive set of analytes for monitoring the precision of Immunoassay and therapeutic drug monitoring tests; Trilevel, 4 of each level (12 x 5 mL)Assayed, liquid human source control for monitoring the precision of urine dipstick tests, with 18 analytes; bilevel (6 x 12 mL)
Stability3 year shelf life at 2–8°C4 year shelf life at 18 to 25°C3 year shelf life at 2 to 8°C2 year shelf life at 2 to 8°C
Size(s)6 x 3 mL30 x 1.7 mL12 x 5 mL6 x 12 mL
Analytesd-Amphetamine, d-Methamphetamine, 3, 4-Methylenedioxymethamphetamine (MDMA), Secobarbital, Benzodiazepines, Nordiazepam, Oxazepam, 11-Nor-?-9-THC-9-COOH, Benzoylecgonine, Ethanol (mg/dL), Lysergic Acid Diethylamide (LSD), Methadone, Methaqualone, Morphine (Free), Oxycodone, Phencyclidine (PCP), Propoxyphene, NortriptylinepCO2, pH, pO2Partial list; inquire for comprehensive analyte menu: 11-Deoxycortisol, 17-a-Hydroxyprogesterone, Acetaminophen, ACTH, Aldosterone, Alphafetoprotein (AFP), Amikacin, Amitriptyline, Androstenedione, Angiotensin I, C-Peptide, Caffeine, Calcitonin, Carbamazepine, CEA, Chloramphenicol, Cortisol, DHEA, Digoxin, Disopyramide, Estradiol, Estriol(Free), estrogen(total), EthosuximideAlbumin, Albumin-to-CreatinineRatio, Ascorbic Acid, Bilirubin, Blood, Creatinine, Glucose, Hemoglobin (HGB), Ketones, Leukocytes, Microalbumin, Nitrite, pH, Pregnancy (hCG), Protein (Total), Protein-to-Creatinine Ratio, Specific Gravity, Urobilinogen
Required EquipmentCross-platform compatibleCross-platform compatibleCross-platform compatibleCross-platform compatible
FormatLiquidLiquidLyophilizedLiquid
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