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Our highly active Method Development group averages one new method per week. If you do not see an assay you need, please contact us, as we may have the method in development or similar compound expertise. We welcome requests for specific assays to meet your needs.

4,600+ proprietary and 900+ non-proprietary assays show the depth of our experience. The following list displays our non-proprietary methods and biomarkers in alphabetical order. By clicking on the analyte name, you can view and/or download information on the assay, including method type, matrix, analytical range(s) and stability data. For certain methods, additional calibration ranges are available. Click on the Contact Us button for more information about these assays or the development of proprietary assays for your specific application.

View our comprehensive assay list, including LC-MS/MS, Immunoassays, Biomarkers and Specialty Assays.

AnalyteMatrixLLOQPlatform
Acebutolol ;
Diacetolol
Human
Plasma
5 ng/mLHPLC/UV
Acetaminophen
(APAP)
View Assay Performance
Human
Plasma
0.1 mcg/mLLC-MS/MS
Acetaminophen;
Tramadol
Human
Plasma
100 ng/mL;
5 ng/mL
LC-MS/MS
AcyclovirHuman
Plasma
20 ng/mLHPLC/FL
AcyclovirHuman
Urine
1 mcg/mLHPLC/FL
AdipenectinHuman
Serum
0.8 ng/mLELISA
Alkaline Hematin
(see Menstrual Blood)
View Assay Performance
Menstrual
Products
Colorimetric
Allopurinol;
Oxypurinol
Human
Plasma
50 ng/mL;
100 ng/mL
LC-MS/MS
Alprazolam;
α-Hydroxyalprazolam
Dog
Plasma
0.5 ng/mL;
0.5 ng/mL
LC-MS/MS
Alprazolam;
α-Hydroxyalprazolam
Human
Plasma
0.5 ng/mL;
0.5 ng/mL
LC-MS/MS
Aprepitant
View Assay Performance
Human
Plasma
10 ng/mLLC-MS/MS
AluminumHuman
Plasma
5 ng/mL
HPLC
AluminumHuman
Urine
2 ng/mLHPLC
AmikacinHuman
Serum
0.15 mcg/mLLC-MS/MS
AmikacinHuman
Urine
0.5 mcg/mLLC-MS/MS
Aminosalicylic Acid, 5-Human
Feces
1 ng on colHPLC/FL
Aminosalicylic Acid, 5-;
N-Acetyl-5-Aminosalicylic Acid
Human
Plasma
10 ng/mL;
10 ng/mL
HPLC/FL
Aminosalicylic Acid, 5-Human
Urine
2 mcg/mLHPLC/FL
Aminosalicylic Acid, 5-Rat
Plasma
10 ng/mLLC-MS/MS
Amiodarone;
Desethylamiodarone
Human
Plasma
10 ng/mLLC-MS/MS
AmitriptylineHuman
Plasma
200 pg/mLLC-MS/MS
AmlodipineHuman
Plasma
50 pg/mLLC-MS/MS
AmlodipineHuman
Plasma
0.15 ng/mLLC-MS/MS
AnipamilHuman
Plasma
5 ng/mLHPLC/FL
Aspirin
(See Acetylsalicylic Acid)
View Assay Performance
Human
Plasma
0.25 ng/mLHPLC/UV
AtenololHuman
Plasma
10 ng/mLLC-MS/MS
AtenololHuman
Urine
250 ng/mLLC-MS/MS
Atenolol, (R)- and (S)-Human
Plasma
20 ng/mL;
20 ng/mL
HPLC/FL
Atenolol, (R)- and (S)-Rat
Plasma
20 ng/mL;
20 ng/mL
HPLC/FL
Atomoxetine
View Assay Performance
Human
Plasma
10 ng/mLLC-MS/MS
Atorvastatin
View Assay Performance
Human
Plasma
0.2 ng/mLLC-MS/MS
Atorvastatin
(2-Hydroxy)
View Assay Performance
Human
Plasma
0.2 ng/mLLC-MS/MS
Atorvastatin
(4-Hydroxy)
View Assay Performance
Human
Plasma
0.2 ng/mLLC-MS/MS
Azacytidine, 5-Human
Plasma
10 ng/mLLC-MS/MS
AzithromycinHuman
Plasma
2 ng/mLLC-MS/MS
Benazepril;
Benazeprilat
Dog
Plasma
0.1 ng/mL;
0.5 ng/mL
LC-MS/MS
Benazepril;
Benazeprilat
View Assay Performance
Human
Plasma
2 ng/mL;
2 ng/mL
LC-MS/MS
BicalutamideHuman
Plasma
2.5 ng/mLLC-MS/MS
BucladesineHuman
Plasma
1 ng/mLLC-MS/MS
Brompheniramine
View Assay Performance
Human
Plasma
0.5 ng/mLLC-MS/MS
Chlorpheniramine
View Assay Performance
Human
Plasma
0.5 ng/mLLC-MS/MS
Pseudoephedrine
View Assay Performance
Human
Plasma
5 ng/mLLC-MS/MS
Buprenorphine;
Norbuprenorphine
Dog
Plasma
100 pg/mLLC-MS/MS
Buprenorphine;
Norbuprenorphine
View Assay Performance
Human
Plasma
50 pg/mLLC-MS/MS
Buprenorphine;
Norbuprenorphine
Rabbit
Plasma
50 pg/mLLC-MS/MS
Buspirone; 1-PPDog
Plasma
100 pg/mLLC-MS/MS
Buspirone; 1-PPHuman
Plasma
100 pg/mLLC-MS/MS
ButalbitalHuman
Plasma
0.1 mcg/mLHPLC/UV
ButorphanolHuman
Plasma
20 pg/mLLC-MS/MS
CaffeineHuman
Plasma
0.05 mcg/mLHPLC/UV
CanrenoneHuman
Plasma
2 ng/mLLC-MS/MS
CanrenoneHuman
Urine
20 ng/mLLC-MS/MS
Captisol
View Assay Performance
Human
Plasma
5 mcg/mLLC-MS/MS
CarbamazepineHuman
Plasma
0.05 mcg/mLHPLC/UV
Carisbamate
View Assay Performance
Human
Plasma
5 ng/mLLC-MS/MS
Cetirizine
View Assay Performance
Human
Plasma
2 ng/mLLC-MS/MS
CimetidineDog
Plasma
50 ng/mLHPLC/UV
CimetidineHuman
Plasma
50 ng/mLHPLC/UV
CiprofloxacinCat
Plasma
25 ng/mLHPLC/FL
CiprofloxacinHuman
Plasma
10 ng/mLLC-MS/MS
Ciprofloxacin
View Assay Performance
Human
Serum
10 ng/mLLC-MS/MS
CisaprideHuman
Plasma
5 ng/mLHPLC/FL
Citric Acid
View Assay Performance
Human
Urine
50 mcg/mLLC-MS/MS
ClarithromycinHuman
Plasma
10 ng/mLLC-MS/MS
Clonazepam
View Assay Performance
Human
Plasma
0.1 pg/mLLC-MS/MS
7-Hydroxyclonazepam
View Assay Performance
Human
Plasma
0.2 pg/mLLC-MS/MS
ClonidineHuman
Plasma
10 pg/mLLC-MS/MS
Cluster of
Differentiation 14
(CD-14)
View Assay Performance
Human
Plasma
100 pg/mLELISA
CodeineHuman
Plasma
1 ng/mLLC-MS/MS
CordycepinHuman
Plasma
1 ng/mLLC-MS/MS
Cortisol
View Assay Performance
Human40.0 ng/mLLC-MS/MS
CortisoneHuman
Plasma
5 ng/mLHPLC/UV
Cotinine (Nicotine Metabolite)
View Assay Performance
Human
Plasma
1 ng/mLLC-MS/MS
CyclobenzaprineDog
Plasma
0.1 ng/mLLC-MS/MS
Cyclobenzaprine
View Assay Performance
Human
Plasma
0.2 ng/mLLC-MS/MS
Cytarabine (Ara-C)
View Assay Performance
Human
Plasma
20 ng/mLLC-MS/MS
Deoxycholic AcidHuman
Plasma
10 ng/mLLC-MS/MS
DexamethasoneHuman
Plasma
0.25 ng/mLLC-MS/MS
Dextromethorphan
View Assay Performance
Human
Plasma
50 pg/mLLC-MS/MS
Dextromethorphan;
3-Hydroxymorphinan;
4-Methoxymorphinan
Human
Plasma
10 ng/mLHPLC/FL
Dextromethorphan;
3-Hydroxymorphinan;
4-Methoxymorphinan
Human
Urine
0.25 mcg/mLHPLC/FL
DextrorphanHuman
Plasma
10 ng/mLHPLC/FL
DextrorphanHuman
Urine
250 ng/mLHPLC/FL
Diclofenac
View Assay Performance
Human
Plasma
5 ng/mLLC-MS/MS
DiclofenacRat
Plasma
10 ng/mLHPLC/UV
Digoxin
View Assay Performance
Human
Plasma
0.1 ng/mLLC-MS/MS
Diltiazem
View Assay Performance
Human
Plasma
4 ng/mLLC-MS/MS
N-Desmethyldiltiazem
View Assay Performance
Human
Plasma
2 ng/mLLC-MS/MS
Desacetyldiltiazem
View Assay Performance
Human
Plasma
1 ng/mLLC-MS/MS
Diphenydramine
View Assay Performance
Human
Plasma
1 ng/mLLC-MS/MS
DipyridamoleHuman
Plasma
50 ng/mLLC-MS/MS
DNA QuantitationHuman
Tissue
50 ng/mLFluorometric
Doxepin;
Nordoxepin
Human
Urine
0.25 ng/mL;
0.20 ng/mL
LC-MS/MS
Doxorubicin
View Assay Performance
Human
Plasma
0.5 ng/mLLC-MS/MS
Doxorubicinol
View Assay Performance
Human
Plasma
0.5 ng/mLLC-MS/MS
DoxorubicinHuman
Urine
1.5 ng/mLLC-MS/MS
DoxylamineHuman
Plasma
5 ng/mL;
100 ng/mL
HPLC/UV
DoxylamineHuman
Urine
5 ng/mL;
100 ng/mL
HPLC/UV
DyclonineDog
Serum
1 ng/mLLC-MS/MS
EbastineHuman
Plasma
10 ng/mLHPLC/UV
EfavirenzHuman
Plasma
50 ng/mLLC-MS/MS
Enalapril;
Enalaprilat
View Assay Performance
Human
Plasma
0.25 ng/mLLC-MS/MS
Eotaxin
Human
Plasma
5.86 pg/mL

ECL
Eotaxin-3
Human
Plasma
4.85 pg/mL

ECL
Esomeprazole
View Assay Performance
Human
Plasma
0.25 ng/mLLC-MS/MS
EthambutolHuman
DBS
100 ng/mLLC-MS/MS
FamotidineHuman
Plasma
2 ng/mLLC-MS/MS
FamotidineHuman
Urine
2 ng/mLLC-MS/MS
Felodipine
View Assay Performance
Human
Plasma
25 pg/mLLC-MS/MS
Femoxitine;
N-Desmethylfemoxitine
Human
Plasma
5 ng/mLHPLC/FL
Femoxitine;
N-Desmethylfemoxitine
Monkey
Plasma
5 ng/mLHPLC/FL
Fenofibric Acid
View Assay Performance
Human
Plasma
20 ng/mLLC-MS/MS
Fexofenadine
View Assay Performance
Human
Plasma
1 ng/mLLC-MS/MS
FexofenadineMouse
Plasma
25 ng/mLLC-MS/MS
FexofenadineRabbit
Plasma
25 ng/mLLC-MS/MS
FexofenadineRat
Plasma
25 ng/mLLC-MS/MS
Flavoxate;
MFCA metabolite
Human
Plasma
0.1 ng/mLLC-MS/MS
Flurbiprofen
View Assay Performance
Human
Plasma
5 ng/mLLC-MS/MS
Flurbiprofen,
(R)- and (S)-
View Assay Performance
Human
Plasma
0.25 mcg/mLHPLC/FL
Flurbiprofen,
(R)- and (S)-
View Assay Performance
Human
Urine
0.5 mcg/mLHPLC/FL
Furosemide
View Assay Performance
Human
Plasma
50 ng/mLLC-MS/MS
FurosemideHuman
Urine
50 ng/mLLC-MS/MS
GemcitabineHuman
Plasma
40 ng/mLHPLC/UV
GemcitabineHuman
Urine
40 ng/mLHPLC/UV
GemfibrozilHuman
Plasma
0.5 mcg/mLHPLC/UV
Ghrelin Active
View Assay Performance
Human
Plasma
100 pg/mLELISA
Ghrelin Total
View Assay Performance
Human
Plasma
200 pg/mLELISA
GliclazideHuman
Plasma
100 ng/mLHPLC/UV
Granisetron
View Assay Performance
Dog
Plasma
0.1 ng/mLLC-MS/MS
Granulocyte Macrophage – Colony Stimulating Factor (GM-CSF)
Human
Plasma
0.243 pg/mL

ECL
Guaifenesin;
Naproxen
View Assay Performance
Human
Plasma
10 ng/mL;
250 ng/mL
LC-MS/MS
Haloperidol
View Assay Performance
Human
Plasma
25 pg/mLLC-MS/MS
Hepatocyte Growth
Factor (HGF)
Human
Plasma
400 pg/mLELISA
Heptazyme
Antibodies
Monkey
Serum
1:25,600 titerELISA
HomocysteineDog
Plasma
5 mcg/mLLC-MS/MS
HomocysteineRat
Plasma
5 mcg/mLLC-MS/MS
Hydrochlorothiazide
(HCTZ)
Human
Plasma
1 ng/mLHPLC/UV
Hydrochlorothiazide
(HCTZ)
Human
Urine
0.05 mcg/mLHPLC/UV
Hydrocodone
View Assay Performance
Human
Plasma
0.1 ng/mLLC-MS/MS
Hydromorphone
View Assay Performance
Dog
Plasma
20 pg/mLLC-MS/MS
HydromorphoneHuman
Plasma
40 pg/mLLC-MS/MS
trans-3'-Hydroxycotinine (Nicotine Metabolite)
View Assay Performance
Human
Plasma
1 ng/mLLC-MS/MS
Ibuprofen
View Assay Performance
Human
Plasma
0.25 mcg/mLLC-MS/MS
Ibuprofen,
(R)- and (S)-
Human
Plasma
0.25 mcg/mLHPLC/UV
Ibuprofen,
(R)- and (S)-
Human
Urine
2.5 mcg/mLHPLC/FL
Imipramine;
Desipramine
Human
Plasma
0.1 ng/mLLC-MS/MS
Indocyanine Green
(ICG)
Human
Plasma
0.3 mcg/mLHPLC/UV
Indomethacin
View Assay Performance
Human
Plasma
10 ng/mLLC-MS/MS
IndomethacinPlasma/
Serum
20 ng/mLHPLC/FL
Interferon alpha (IFN-α)Human
Serum
10 pg/mLELISA
Interferon gamma (IFN-g)
Human
Plasma
1.33 pg/mL

ECL
Interleukin-1α (IL-1α)
Human
Plasma
0.396 pg/mL

ECL
Interleukin-1b (IL-1b)
Human
Plasma
0.46 pg/mL

ECL
Interleukin-2 (IL-2)
Human
Plasma
0.315 pg/mL

ECL
Interleukin-4 (IL-4)
Human
Plasma
0.064 pg/mL

ECL
Interleukin-5 (IL-5)
Human
Plasma
3.56 pg/mL

ECL
Interleukin-6 (IL-6)
Human
Plasma
0.626 pg/mL

ECL
Interleukin-7 (IL-7)
Human
Plasma
0.205 pg/mL

ECL
Interleukin-8 (IL-8)
Human
Plasma
0.488 pg/mL
ECL
Interleukin-8 (IL-8(HA))
Human
Plasma
1185.9 pg/mL

ECL
Interleukin-10 (IL-10)
Human
Plasma
0.309 pg/mL

ECL
Interleukin-12/IL-23p40 (IL-12/IL-23p40)
Human
Plasma
0.786 pg/mL

ECL
Interleukin-12 (IL-12p70)
Human
Plasma
0.401 pg/mL

ECL
Interleukin-13 (IL-13)
Human
Plasma
2.45 pg/mL

ECL
Interleukin-15 (IL-15)
Human
Plasma
0.19 pg/mL
ECL
Interleukin-16 (IL-16)
Human
Plasma
2.47 pg/mL

ECL
Interleukin-17A (IL-17A)
Human
Plasma
1.47 pg/mL

ECL
Interferon gamma – Inducible Protein-10
(IP-10)
Human
Plasma
150 pg/mL
ECL
Isotretinoin;
4-Oxo-Isotretinoin
View Assay Performance
Human
Plasma
10 ng/mLLC-MS/MS
Isradapine
View Assay Performance
Human
Plasma
0.1 ng/mLLC-MS/MS
Ketoconazole
View Assay Performance
Human
Plasma
50 ng/mLHPLC/FL
Clotrimazole
View Assay Performance
Human
Plasma
5 ng/mLLC-MS/MS
Ketoprofen
View Assay Performance
Human
Plasma
0.25 ng/mLLC-MS/MS
Lansoprazole
View Assay Performance
Human
Plasma
0.25 ng/mLLC-MS/MS
LevofloxacinRabbit
Plasma
10 ng/mLLC-MS/MS
LorazepamHuman
Plasma
0.2 ng/mLLC-MS/MS
Losartan
View Assay Performance
Human
Plasma
2 ng/mLLC-MS/MS
Losartan
Carboxylic Acid
View Assay Performance
Human
Plasma
2 ng/mLLC-MS/MS
Mefenamic AcidHuman
Plasma
40 ng/mLLC-MS/MS
Meloxicam
View Assay Performance
Human
Plasma
10 ng/mLLC-MS/MS
MelphalanHuman
Plasma
25 ng/mLLC-MS/MS
Memantine
View Assay Performance
Human
Plasma
0.5 ng/mLLC-MS/MS
Memantine N-GlucuronideHuman
Plasma
0.2 ng/mLLC-MS/MS
Menstrual Blood
(as Alkaline Hematin)
Menstrual
Products
1 mLColorimetric
Mephenytoin, (R)-;
Mephenytoin, (S)-
Human
Plasma
10 ng/mLLC-MS/MS
Mephenytoin, (R)-;
Mephenytoin, (S)-
Human
Saliva
10 ng/mLLC-MS/MS
Mephenytoin, (R)-;
Mephenytoin, (S)-
Human
Urine
0.1 mcg/mLLC-MS/MS
Hydroxymephenytoin,
(R)-4-;
Hydroxymephenytoin,
(S)-4-
Human
Plasma
10 ng/mLLC-MS/MS
Hydroxymephenytoin,
(R)-4-;
Hydroxymephenytoin,
(S)-4-
Human
Saliva
10 ng/mLLC-MS/MS
Hydroxymephenytoin,
(R)-4-;
Hydroxymephenytoin,
(S)-4-
Human
Urine
0.1 mcg/mLLC-MS/MS
Macrophage-Derived Chemokin (MDC)
Human
Plasma
10.4 pg/mL

ECL
Macrophage Inflammatory Protein
(MIP-1α)
Human
Plasma
3.68 pg/mL

ECL
Macrophage Inflammatory Protein
(MIP-1b)
Human
Plasma
0.99 pg/mL

ECL
Mercaptopurine, 6-;
6-Thiouric Acid
Human
Plasma
2 ng/mL;
20 ng/mL
LC-MS/MS
Mercaptopurine, 6-;
6-Thiouric Acid
Human
Urine
6 ng/mL;
60 ng/mL
LC-MS/MS
Metformin
View Assay Performance
Human
Plasma
20 ng/mLLC-MS/MS
MethocarbamolHuman
Plasma
0.1 mcg/mLHPLC/FL
MethylnicotinamideHuman
Plasma
10 ng/mLLC-MS/MS
Methylphenidate
View Assay Performance
Human
Plasma
0.1 ng/mLLC-MS/MS
MethylprednisoloneHuman
Plasma
2.5 ng/mLLC-MS/MS
MetoclopramideHuman
Plasma
1 ng/mLHPLC/UV
MetoclopramideHuman
Urine
60 ng/mLHPLC/FL
Metoprolol
View Assay Performance
Human
Plasma
1 ng/mLLC-MS/MS
Metoprolol;
Hydroxymetoprolol
Human
Plasma
2.5 ng/mLHPLC/FL
Metoprolol;
Hydroxymetoprolol
Human
Urine
1000 ng/mLHPLC/FL
α-Hydroxymidazolam; 4-HydoxymidazolamDog
Plasma
2 ng/mL;
2 ng/mL
LC-MS/MS
Midazolam
View Assay Performance
Human
Plasma
0.5 ng/mLLC-MS/MS
α-Hydroxymidazolam
View Assay Performance
Human
Plasma
0.5 ng/mLLC-MS/MS
Midazolam;
1-Hydroxymidazolam;
4-Hydroxymidazolam
Human
Urine
10 ng/mL;
2 ng/mL;
2 ng/mL
LC-MS/MS
α-Hydroxymidazolam;
4-Hydoxymidazolam
Rat
Plasma
2 ng/mL;
2 ng/mL
LC-MS/MS
Molindone
View Assay Performance
Human
Plasma
0.25 ng/mLLC-MS/MS
Monocyte Chemotactic Protein 1
(MCP-1)
Human
Plasma
0.109 pg/mL

ECL
Monocyte Chemotatic
Protein 1 (MCP-1)
View Assay Performance
Human
Plasma
30 pg/mLELISA
Monocyte Chemotatic
Protein 3 (MCP-3)
View Assay Performance
Human
Plasma
15 pg/mLELISA
Monocyte Chemotactic Protein 4
(MCP-4)
Human
Plasma
9.41 pg/mL

ECL
Morphine
View Assay Performance
Human
Plasma
0.5 ng/mLLC-MS/MS
Morphine-3-Glucuronide
View Assay Performance
Human
Plasma
5 ng/mLLC-MS/MS
Morphine-6-Glucuronide
View Assay Performance
Human
Plasma
2 ng/mLLC-MS/MS
Morphine;
Morphine-3-Glucuronide;
Morphine-6-Glucuronide
Ovine
Plasma
0.5 ng/mL;
5 ng/mL;
2 ng/mL
LC-MS/MS
MoxifloxacinHuman
DBS
100 ng/mLLC-MS/MS
Moxifloxacin
View Assay Performance
Human
Plasma
20 ng/mLLC-MS/MS
Naproxen
View Assay Performance
Human
Plasma
0.25 mcg/mLLC-MS/MS
Niacin (Nicotinic Acid);
Nicotinuric Acid
Human
Urine
25 ng/mLLC-MS/MS
Nicotine (Tobacco)
View Assay Performance
Human
Plasma
0.5 ng/mLLC-MS/MS
Nifedipine ; NPOHuman
Plasma
1 ng/mLLC-MS/MS
NitrofurantoinHuman
Plasma
5 ng/mLHPLC/UV
NitrofurantoinHuman
Urine
2 mcg/mLHPLC/UV
OlanzapineHuman
Plasma
0.1 ng/mLLC-MS/MS
Omeprazole
View Assay Performance
Human
Plasma
5 ng/mLLC-MS/MS
Ondansetron
View Assay Performance
Human
Plasma
0.5 ng/mLLC-MS/MS
OxandroloneHuman
Plasma
0.25 ng/mLLC-MS/MS
OxaprozinHuman
Plasma
2 mcg/mLHPLC/UV
Oxybutynin
View Assay Performance
Human
Plasma
50 pg/mLLC-MS/MS
N-Desethyloxybutynin
View Assay Performance
Human
Plasma
250 pg/mLLC-MS/MS
Oxycodone
View Assay Performance
Human
Plasma
0.25 ng/mLLC-MS/MS
Noroxycodone
View Assay Performance
Human
Plasma
0.25 ng/mLLC-MS/MS
OxymorphoneHuman
Plasma
0.25 ng/mLLC-MS/MS
PaclitaxelHuman
Plasma
100 pg/mLLC-MS/MS
PaclitaxelHuman
Urine
5 ng/mLLC-MS/MS
Pantoprazole
View Assay Performance
Human
Plasma
10 ng/mLLC-MS/MS
ParaxanthineHuman
Plasma
25 ng/mLHPLC/UV
Paroxetine
View Assay Performance
Human
Plasma
0.2 ng/mLLC-MS/MS
PentazocineHuman
Plasma
1 ng/mLLC-MS/MS
Phenylephrine
View Assay Performance
Human
Plasma
0.5 ng/mLLC-MS/MS
Phenylephrine
View Assay Performance
Human
Urine
5 ng/mLLC-MS/MS
PhenytoinHuman
Plasma
0.25 mcg/mLHPLC/UV
PhenytoinHuman
Urine
1 mcg/mLHPLC/UV
Phenytoin;
Phenylhydantoin;
Phenobarbitol (Free Assay)
Human
Urine
0.1 mcg/mLHPLC/UV
PindololHuman
Plasma
1 ng/mLHPLC/UV
PiroxicamHuman
Plasma
50 ng/mLHPLC/UV
Potassium
View Assay Performance
Human
Urine
8 mMICP-MS
PrednisoloneHuman
Plasma
1 ng/mLHPLC/UV
PrednisoneHuman
Plasma
1 ng/mLHPLC/UV
PrimidoneHuman
Plasma
25 ng/mLLC-MS/MS
Propafenone;
N-Despropylpropafenone-;
5-Hydroxypropafenone
Human
Plasma
250 pg/mLLC-MS/MS
PropofolHuman
Plasma
2.5 ng/mLHPLC/FL
Propoxyphene
View Assay Performance
Human
Plasma
1 ng/mLLC-MS/MS
Norpropoxyphene
View Assay Performance
Human
Plasma
1 ng/mLLC-MS/MS
Propranolol;
4-Hydroxypropranolol
Human
Plasma
2.5 ng/mLHPLC/FL
Propranolol
Glucuronide
Human
Urine
1 mcg/mLHPLC/FL
PyrazinamideHuman
DBS
10 mcg/mLLC-MS/MS
QuinidineHuman
Plasma
10 ng/mLHPLC/UV
RanitidineHuman
Plasma
5 ng/mLHPLC/UV
ReserpineHuman
Plasma
25 pg/mLHPLC/FL
ResistinHuman
Plasma
160 ng/mLELISA
Ribavirin
View Assay Performance
Human
Plasma
5 ng/mLLC-MS/MS
RifampinHuman
DBS
200 ng/mLLC-MS/MS
RisperidoneHuman
Plasma
0.1 ng/mLLC-MS/MS
Ropinirole
View Assay Performance
Human
Plasma
20 pg/mLLC-MS/MS
RopiniroleMini-Pig
Plasma
20 pg/mLLC-MS/MS
Rosuvastatin
View Assay Performance
Human
Plasma
0.2 ng/mLLC-MS/MS
Salicylic Acid;
Acetylsalicylic Acid
View Assay Performance
Human
Plasma
0.25 mcg/mL;
0.75 mcg/mL
HPLC/UV
Salicylic AcidHuman
Plasma
0.7 mcg/mLHPLC/FL
Salicylic AcidUrine9.2 mcg/mLHPLC/FL
Salicyluric AcidHuman
Plasma
25 ng/mLHPLC/UV
Salicyluric AcidHuman
Urine
2.5 mcg/mLHPLC/UV
Simvastatin
View Assay Performance
Human
Plasma
50 pg/mLLC-MS/MS
Simvastatin
Hydroxy Acid
View Assay Performance
Human
Plasma
50 pg/mLLC-MS/MS
Spironolactone
View Assay Performance
Human
Plasma
0.5 ng/mLLC-MS/MS
Sumatriptan
View Assay Performance
Human
Plasma
0.5 ng/mLLC-MS/MS
TacrolimusRat
DBS
5 ng/mLLC-MS/MS
Tacrolimus
View Assay Performance
Dog
Whole
Blood
0.1 ng/mLLC-MS/MS
Tacrolimus
View Assay Performance
Human
Whole
Blood
0.5 ng/mLLC-MS/MS
Temazepam
View Assay Performance
Human
Plasma
20 ng/mLLC-MS/MS
Tenofovir
View Assay Performance
Human
Plasma
10 ng/mLLC-MS/MS
TenoxicamHuman
Plasma
20 ng/mLHPLC/UV
TerbinafineHuman
Nail
5 pg/mgLC-MS/MS
TerbinafineHuman
Nail
200 mcg/gLC-MS/MS
Terbinafine;
N-Desmethylterbinafine
View Assay Performance
Human
Plasma
40 pg/mLLC-MS/MS
Testosterone (total)Human
Serum
5 ng/dLRIA
TheophyllineHuman
Plasma
50 ng/mLHPLC/UV
TheophyllineHuman
Plasma
0.2 mcg/mLHPLC/UV
TheophyllineHuman
Serum
0.2 mcg/mLHPLC/UV
Thymus Activation-Regulated Chemokine (TARC)
Human
Plasma
0.366 pg/mL

ECL
Tizanidine
View Assay Performance
Human
Plasma
100 pg/mLLC-MS/MS
Tolbutamide;
Carboxytolbutamide;
Hydroxytolbutamide
Human
Plasma
0.25 mcg/mL;
0.5 mcg/mL;
0.5 mcg/mL
HPLC/UV
Tolbutamide;
Carboxytolbutamide;
Hydroxytolbutamide
Human
Urine
0.25 mcg/mL;
0.5 mcg/mL;
0.5 mcg/mL
HPLC/UV
TramadolDog
Plasma
2 ng/mLLC-MS/MS
Tramadol ;
Acetaminophen
View Assay Performance
Human
Plasma
2.5 ng/mL;
100 ng/mL
LC-MS/MS
Tretinoin;
Isotretinoin
View Assay Performance
Human
Plasma
10 ng/mL;
10 ng/mL
LC-MS/MS
Triamcinolone Acetonide
View Assay Performance
Human
Plasma
20 pg/mLLC-MS/MS
Triamterene
View Assay Performance
Human
Plasma
2 ng/mLLC-MS/MS
Tumor Necrosis Factor (TNF-α)
Human
Plasma
0.31 pg/mL

ECL
Tumor Necrosis Factor (TNF-b)
Human
Plasma
0.154 pg/mL

ECL
Tyramine
View Assay Performance
Human
Plasma
1 ng/mLLC-MS/MS
Valproic Acid
View Assay Performance
Human
Plasma
0.5 mcg/mLLC-MS/MS
Vascular Endothelial Growth Factor (VEGF)
Human
Plasma
3.98 pg/mL

ECL
Venlafaxine;
O-Desmethylvenlafaxine
Human
Plasma
2.5 ng/mLLC-MS/MS
Vitamin B6Human
Plasma
50 ng/mLLC-MS/MS
Vitamin EHuman
Plasma
0.5 mcg/mLHPLC/UV
Warfarin,
(R)- and (S)-
Human
Plasma
50 ng/mLHPLC/FL
XanthineHuman
Plasma
0.5 mcg/mLHPLC/UV
XanthineHuman
Urine
1 mcg/mLHPLC/UV
Zolmitriptan
View Assay Performance
Human
Plasma
0.1 ng/mLLC-MS/MS
Zolmitriptan; N-Desmethyl
View Assay Performance
Human
Plasma
0.1 ng/mL
LC-MS/MS
Zolpidem
View Assay Performance
Human
Plasma
0.5 ng/mLLC-MS/MS
ZonisamideHuman
Serum
50 ng/mLHPLC/UV