| Test Article | Matrix | Species | Anticoagulant | Assay Type | LLOQ-ULOQ | 
|---|---|---|---|---|---|
| 25-O-Desacetylrifabutin | Plasma | Human | Heparin | LC-MS/MS | 1-1000 | 
| 3,4-Dihydroxyphenylacetic Acid | Cerebrospinal Fluid | Human | None | LC-EC | 0.1-40 | 
| 3,4-Dihydroxyphenylacetic Acid | Plasma | Human | EDTA | LC-EC | |
| 3,4-Dihydroxyphenylglycol | Cerebrospinal Fluid | Human | None | LC-EC | 0.1-10 | 
| 3,4-Dihydroxyphenylglycol | Plasma | Human | EDTA | LC-EC | 0.5-4.5 | 
| 3-Methoxytyramine | Cerebrospinal Fluid | Human | None | LC-MS/MS | 0.05-5 | 
| 3-O-Methyldopa | Plasma | Human | EDTA | LC-EC | 5-250 | 
| 4-Hydroxycyclophosphamide | Plasma | Human | Heparin | LC-MS/MS | 5-500 | 
| 4-Ketocyclophosphamide | Plasma | Human | Heparin | LC-MS/MS | 0.1-10 | 
| 5-Fluorouracil | Plasma | Human | EDTA/Heparin | LC-MS/MS | 10-10000 | 
| 6-Sulfatoxymelatonin Sulfate | Urine | Human | None | LC-MS/MS | 0.2-200 | 
| 6β-Hydroxycortisol | Urine | Human | None | LC-MS/MS | 1-1000 | 
| 6β-Hydroxycortisol | Urine | Human | None | LC-MS/MS | 10-2000 | 
| Abiraterone | Plasma | Human | EDTA/Heparin | LC-MS/MS | 0.5-420 | 
| Acetaminophen | Plasma | Human | EDTA | LC-MS/MS | 4-2000 | 
| Acetaminophen | Plasma | Human | EDTA | MS | 4-2000 | 
| Acetylsalicylic Acid | Plasma | Dog | EDTA | LC-MS/MS | 5-500 | 
| Acetylsalicylic Acid | Plasma | Dog | Sodium Fluoride and Potassium Oxalate | LC-MS/MS | 50-15000 | 
| Acetylsalicylic Acid | Plasma | Human | EDTA | LC-UV | 100 | 
| Active Glucagon-Like Peptide-1 (GLP-1) | Plasma | Human | EDTA | ELISA-ECL | 0.002-2.5 | 
| Adiponectin | Serum | Human | None | ELISA | 5-300 | 
| Alprazolam and Hydroxyalprazolam Metabolites | Plasma | Human | EDTA | LC-MS/MS | 0.3-1000 | 
| Amiodarone and Desethylamiodarone | Plasma | Human | EDTA | LC-MS/MS | 5-3000 | 
| Aripiprazole | Plasma | Human | EDTA | LC-MS/MS | 0.1-100 | 
| Artesunate | Plasma | Human | Heparin | LC-MS/MS | 10-2000 | 
| Atropine | Plasma | Human | EDTA | LC-MS/MS | 0.05-250 | 
| Azithromycin | Plasma | Human | Heparin | LC-EC | 12.5-1000 | 
| Azithromycin | Serum | Human | None | LC-EC | 10.4-1000 | 
| Baclofen | Plasma | Human | Heparin | LC-MS/MS | 20-1000 | 
| Bendamustine and M3 and M4 Metabolites | Plasma | Human | Heparin | LC-MS/MS | 1-1000 | 
| Benzophenone | Plasma | Human | EDTA | LC-MS/MS | 5-5000 | 
| Bortezomib | Plasma | Human | Heparin | LC-MS/MS | 1-250 | 
| Bupivacaine | Plasma | Human | EDTA | LC-MS/MS | 0.5-500 | 
| C-Reactive Protein | Serum | Porcine | None | ELISA | 3-100 | 
| Caffeine | Plasma | Human | EDTA | LC-MS/MS | 25-20000 | 
| Capecitabine and Metabolites (Prodrug for 5-Fluorouracil) | Plasma | Human | Heparin | LC-MS/MS | 75-10000 | 
| Carbamazepine and Carbamazepine-10,11-Epoxide | Plasma | Human | EDTA | LC-MS/MS | 5-5000 | 
| Carbidopa | Plasma | Human | EDTA | LC-EC | 10-2000 | 
| Carbidopa | Plasma | Human | EDTA | LC-EC | 10-2000 | 
| Chlorhexidine | Plasma | Rabbit | EDTA | LC-MS/MS | 0.5-50 | 
| Chlorpheniramine | Plasma | Human | EDTA | LC-MS/MS | 0.2-50 | 
| Chlorpheniramine | Plasma | Human | EDTA | LC-MS/MS | 0.2-100 | 
| Ciprofloxacin | Plasma | Human | EDTA | LC-MS/MS | 100-10000 | 
| Clonazepam | Plasma | Human | EDTA | LC-MS/MS | 0.100-100 | 
| Clonidine | Plasma | Rat | EDTA | LC-MS/MS | 5-5000 | 
| Cortisol | Urine | Human | None | LC-MS/MS | 5-1000 | 
| Cortisol | Urine | Human | None | LC-MS/MS | 0.5-500 | 
| Cortisol | Urine | None | LC-MS/MS | 1-500 | |
| Cyanide | Whole Blood (Lysed) | Human | EDTA | LC-MS/MS | 25-2500 | 
| Cyclophosphamide | Plasma | Human | Heparin | LC-MS/MS | 250-25000 | 
| Cyclophosphamide | Plasma | Human | Heparin | LC-MS/MS | 1-100 | 
| Darunavir | Plasma | Human | EDTA | LC-MS/MS | 25-12500 | 
| Daunorubicin | Plasma | Human | EDTA | LC-MS/MS | 1-1000 | 
| Dechloroethylcyclophosphamide | Plasma | Human | Heparin | LC-MS/MS | 0.1-10 | 
| Dehydroaripiprazole | Plasma | Human | EDTA | LC-MS/MS | 0.1-100 | 
| Delta-9-Tetrahydrocannabinol (THC) and 11-Hydroxy Metabolite | Plasma | Human | Heparin | LC-MS/MS | 0.05-50 | 
| Desipramine | Plasma | Human | EDTA | LC-MS/MS | 0.2-100 | 
| Dexamethasone | Endocardial and Myocardial Tissue | Dog | None | LC-MS/MS | 1-1000 | 
| Dexamethasone | Plasma | Dog | EDTA | LC-MS/MS | 0.001-100 | 
| Dexamethasone | Plasma | Porcine | EDTA | LC-MS/MS | 0.1-100 | 
| Dexamethasone Phosphate | Plasma | Rabbit | EDTA | LC-MS/MS | 0.2-200 | 
| Dihydroartemisinin | Plasma | Human | Heparin | LC-MS/MS | 10-2000 | 
| Diltiazem | Plasma | Human | Heparin | LC-MS/MS | 1-500 | 
| Diltiazem | Plasma | Dog | EDTA | LC-MS/MS | 0.05-50 | 
| Diltiazem | Plasma | Rat | Heperain | LC-MS/MS | 1-500 | 
| Dipeptidylpeptidase IV (DPP IV) | Plasma | Human | Citrate | Fluorimetric Enzyme | Enzyme | 
| Docetaxel | Plasma Ultrafiltrate | Human | Heparin | LC-MS/MS | 2-100 | 
| Docetaxel | Plasma | Human | EDTA/Heparin | LC-MS/MS | 1-1000 | 
| Docetaxel | Plasma Ultrafiltrate | Human | Heparin | LC-MS/MS | 2-100 | 
| Docetaxel | Plasma | Human | Heparin | LC-MS/MS | 1-1000 | 
| Docetaxel | Plasma | Mouse | Heparin | LC-MS/MS | 50-5000 | 
| Docetaxel | Plasma | Dog | Heparin | LC-MS/MS | 10-2500 | 
| Docetaxel | Plasma | Human | Heparin | LC-MS/MS | 10-2500 | 
| Docetaxel | Plasma | Human | Heparin | LC-MS/MS | 10 | 
| Donepezil | Plasma | Porcine | EDTA | LC-MS/MS | 0.03-10 | 
| Donepezil | Plasma | Human | EDTA | LC-MS/MS | 0.1-100 | 
| Dopamine | Plasma | Human | EDTA | LC-MS/MS | 2-1000 | 
| Doxorubicin | Plasma | Human | EDTA | LC-MS/MS | 1-1000 | 
| Efavirenz | Plasma | Human | Heparin | LC-MS/MS | 200-10000 | 
| Efavirenz | Plasma | Human | EDTA/Heparin | LC-MS/MS | 200-10000 | 
| Eicosapentaenoic acid | Plasma | Human | None | LC-MS/MS | 400-45000 | 
| Eletriptan | Plasma | Human | Heparin | LC-MS/MS | 0.5-250 | 
| Emtricitabine | Plasma | Human | EDTA | LC-MS/MS | 5-500 | 
| Epinephrine | Plasma | Human | EDTA | LC-EC | 100-2000 | 
| Epinephrine | Cerebrospinal Fluid | Human | None | LC-EC | 0.1-10 | 
| Erythromycin | Plasma | Human | Heparin | LC-MS/MS | 10-10000 | 
| Ethinyl Estradiol | Plasma | Human | EDTA | LC-MS/MS | 5-500 | 
| Everolimus | Whole Blood | Human | EDTA | LC-MS/MS | 0.25-250 | 
| Everolimus | Whole Blood | Porcine | EDTA | LC-MS/MS | 0.1-100 | 
| Everolimus | Tissues | Porcine | None | LC-MS/MS | 0.5-500 | 
| Fenofibric Acid | Plasma | Mouse | EDTA | LC-MS/MS | 1-1000 | 
| Fentanyl | Serum | Human | None | LC-MS/MS | 0.05-10 | 
| Fentanyl | Serum | Human | None | LC-MS/MS | 0.05-10 | 
| Fluconazole | Plasma | Human | EDTA | LC-MS/MS | 10-10000 | 
| Gabapentin | Plasma | Human | Heparin | LC-MS/MS | 2-10000 | 
| Gemcitabine | Plasma | Human | EDTA | LC-MS/MS | 1-1000 | 
| Gemcitabine and 2’,2’-Difluoro-2’-Deoxyuridine (dFdU) Metabolite | Plasma (THU-treated) | Human | Heparin | LC-MS/MS | 50-50000 | 
| Gemfibrozil | Plasma | Human | EDTA | LC-MS/MS | 50-50000 | 
| Genistein | Serum | Human | None | LC-MS/MS | 1-1000 | 
| Glimepiride | Serum | Human | N/A | LC-MS/MS | 1-500 | 
| Glycinexylidide | Plasma | Human | EDTA | LC-MS/MS | 0.5-50 | 
| Granisetron | Plasma | Human and Dog | EDTA | LC-MS/MS | 1-1000 | 
| Guanethidine | Plasma | Porcine | EDTA | LC-MS/MS | 1-1000 | 
| Haptoglobin | Serum | Porcine | None | ELISA | 6.25-400 | 
| Homovanillic Acid | Cerebrospinal Fluid | Human | None | LC-MS/MS | 5-500 | 
| Homovanillic Acid | Plasma | Human | EDTA | LC-EC | 5-250 | 
| Hydrochlorothiazide | Plasma | Human | EDTA | LC-MS/MS | 1-500 | 
| Hydrochlorothiazide | Urine | Human | None | LC-MS/MS | 100-10000 | 
| Hydrochlorothiazide | Dried Whole Blood | Human | None | LC-MS/MS | 1-500 | 
| Hydrocodone | Plasma | Human | EDTA | LC-MS/MS | 0.2-100 | 
| Hydrocodone | Plasma | Human | EDTA | LC-MS/MS | 0.2-100 | 
| Hydroxymidazolam | Plasma | Human | EDTA | LC-MS/MS | 0.3-300 | 
| Hydroxymidazolam | Plasma | Human | EDTA | LC-MS/MS | 0.3-300 | 
| Iopromide | Plasma & Tissue | Porcine | EDTA | LC-MS/MS | 1-1000, 100-30000 | 
| Ivermectin H2B1a | Plasma | Human | Heparin | LC-MS/MS | 2.5-1000 | 
| Ivermectin H2B1b | Plasma | Human | Heparin | LC-MS/MS | 2.5-20 | 
| Ketoconazole and Fluconazole | Plasma | Human | EDTA | LC-MS/MS | 10-10000 | 
| Ketoprofen | Plasma | Rat | EDTA | LC-MS/MS | 1-1000 | 
| Ketoprofen | Plasma | Porcine | EDTA | LC-MS/MS | 1-1000 | 
| Lenalidomide | Plasma | Human | EDTA | LC-MS/MS | 1-1000 | 
| Levodopa | Plasma | Human | EDTA | LC-EC | 10-2000 | 
| Levodopa | Cerebrospinal Fluid | Human | None | LC-EC | 0.1-10 | 
| Levodopa | Plasma | Human | EDTA | LC-EC | 10-2000 | 
| Levodopa | Plasma | Human | EDTA | LC-MS/MS | 2-1000 | 
| Levofloxacin | Plasma | Human | EDTA | LC-MS/MS | 10-10000 | 
| Levonorgestrel | Plasma | Human | EDTA | LC-MS/MS | 100-10000 | 
| Lidocaine | Plasma | Human | EDTA | LC-MS/MS | 0.5-50 | 
| Lisinopril | Plasma | Human | Heparin | LC-MS/MS | 1-500 | 
| Lorazepam | Plasma | Human | EDTA | LC-MS/MS | 0.3-100 | 
| Melatonin | Saliva | Human | none | ELISA | 0.6-25 | 
| Melatonin | Plasma | Human | EDTA | LC-MS/MS | 1-100 | 
| Melatonin | Saliva | Human | None | LC-MS/MS | 0.001-0.1 | 
| Metformin | Plasma | Human | EDTA | LC-MS/MS | 20-5000 | 
| Metformin | Serum | Human | None | LC-MS/MS | 10-3500 | 
| Methotrexate and 7-Hydroxymethotrexate Metabolite | Plasma | Human | Heparin | LC-MS/MS | 1-1000 | 
| Methotrexate and 7-Hydroxymethotrexate Metabolite | Urine | Human | None | LC-MS/MS | 20-10000 | 
| Methylphenidate | Plasma | Rat | EDTA | LC-MS/MS | 5-5000 | 
| Metoprolol and Alpha-Hydroxy Metoprolol Metabolite | Plasma | Human | Heparin | LC-MS/MS | 5-500 | 
| Midazolam | Plasma | Human | EDTA | LC-MS/MS | 0.3-300 | 
| Midazolam | Plasma | Human | EDTA | LC-MS/MS | 0.3-300 | 
| Monoethylglycinexlidide | Plasma | Human | EDTA | LC-MS/MS | 0.5-50 | 
| Montelukast | Plasma | Human | Heparin | LC-MS/MS | 1.25-1250 | 
| Morphine | Plasma | Human | EDTA | LC-MS/MS | 0.02-10 | 
| Morphine and Metabolites | Plasma | Human or Dog | EDTA | LC-MS/MS | 1-500 | 
| Morphine-6β-D-Glucuronide | Plasma | Human | EDTA | LC-MS/MS | 0.1-50 | 
| Muraglitazar | Plasma | Mouse | EDTA | LC-MS/MS | 1-1000 | 
| Mycophenolic Acid | Plasma | Human | Heparin | LC-MS/MS | 50-10000 | 
| Naloxone | Plasma | Human | EDTA | LC-MS/MS | 1-200 | 
| Naproxen | Plasma | Human | Heparin | LC-MS/MS | 100-100000 | 
| Naproxen (on-line extraction) | Plasma | Human | Heparin | LC-MS/MS | 100-100000 | 
| Nicotine | Plasma | Human | EDTA | LC-MS/MS | 2-200 | 
| Nitrite | Plasma | Rabbit | None | LC-FL | 250-8000 | 
| Nitrite | Plasma | Rat | Heparin | LC-FL | 250-8000 | 
| Nitrite | Plasma | Dog | Heparin | LC-FL | 200-8000 | 
| Nitrite | Plasma | Human | Heparin | LC-FL | 15-1200 | 
| Nitrite | Plasma | Human | Heparin | LC-FL | 150-8000 | 
| Nordiazepam | Plasma | Human | EDTA | LC-MS/MS | 0.3-300 | 
| Norepinephrine | Cerebrospinal Fluid | Human | None | LC-MS/MS | 0.1-10 | 
| Norepinephrine | Plasma | Human | EDTA | LC-EC | 0.25-2.25 | 
| Norepinephrine | Plasma | Human | EDTA | LC-EC | 150-3000 | 
| Noroxycodone | Plasma | Human | EDTA | LC-MS/MS | 1-100 | 
| Noroxycodone | Plasma | Plasma | EDTA | LC-MS/MS | 0.1-100 | 
| Norquetiapine | Plasma | Human | EDTA | LC-MS/MS | 0.5-500 | 
| Octenidine | Plasma | Human | EDTA | LC-MS/MS | 1-10 | 
| Octenidine | Plasma | Mini Pig | EDTA | LC-MS/MS | 1-10 | 
| Olanzapine and N-Desmethyl Olanzapine Metabolite | Plasma | Human | EDTA | LC-MS/MS | 0.1-100 | 
| Omeprazole | Plasma | Human | Heparin | LC-MS/MS | 10-1000 | 
| Ondansetron | Urine | Human | None | LC-MS/MS | 0.2-2000 | 
| Ondansetron | Plasma | Human | EDTA | LC-MS/MS | 0.2-2000 | 
| Ondansetron | Dried Whole Blood | Human | None | LC-MS/MS | 0.2-100 | 
| Ondansetron | Plasma | Human or Dog | EDTA | LC-MS/MS | 1-1000 | 
| Oseltamivir | Plasma | Human | Heparin | LC-MS/MS | 1-250 | 
| Oseltamivir Carboxylate | Plasma | Heparin | LC-MS/MS | 10-10000 | |
| Oxycodone | Plasma | Human | EDTA | LC-MS/MS | 0.1-100 | 
| Oxycodone | Plasma | Human | EDTA | LC-MS/MS | 0.1-100 | 
| Oxymorphone | Plasma | Human | EDTA | LC-MS/MS | 0.1-100 | 
| Oxymorphone | Plasma | Human | EDTA | LC-MS/MS | 0.1-100 | 
| Oxymorphone and 6β-Hydroxyoxymorphone Metabolite | Plasma | Human | EDTA | LC-MS/MS | 20-2000 | 
| Paclitaxel | Seminal Fluid | Human | None | LC-MS/MS | 0.1-100 | 
| Paclitaxel | Urine | Human | None | LC-MS/MS | 0.1-100 | 
| Paclitaxel | Plasma | Dog | Heparin | LC-MS/MS | 0.1-100 | 
| Paclitaxel | Urethral and Prostate Tissues | Dog | None | LC-MS/MS | 0.3-300 | 
| Paclitaxel | Urethral and Prostate Tissues | Dog | None | LC-MS/MS | 0.3-400 | 
| Paclitaxel | Plasma | Human | EDTA | LC-MS/MS | 5-5000 | 
| Paclitaxel | Plasma | Rat | Heparin | LC-MS/MS | 0.1-100 | 
| Paclitaxel | Arterial Tissue | Porcine | None | LC-MS/MS | 0.5-500 | 
| Paclitaxel | Plasma | Human | Heparin | LC-MS/MS | 20-5000 | 
| Paclitaxel | Seminal Fluid | Human | None | LC-MS/MS | 0.1-100 | 
| Paclitaxel | Plasma Ultrafiltrate | Dog | EDTA | LC-MS/MS | 0.3-1000 | 
| Paclitaxel | Serum | Porcine | None | LC-MS/MS | 0.03-30 | 
| Paclitaxel | Whole Blood | Dog | Heparin | LC-MS/MS | 1-1000 | 
| Paclitaxel | Whole Blood | Porcine | None | LC-MS/MS | 0.03-30 | 
| Paclitaxel | Urine | Porcine | None | LC-MS/MS | 0.03-30 | 
| Paclitaxel | Plasma | Porcine | EDTA/Heparin | LC-MS/MS | 0.03-30 | 
| Paclitaxel | Whole Blood | Human | None | LC-MS/MS | 1-1000 | 
| Paclitaxel | Plasma or Plasma Ultrafiltrate | Human | EDTA/Heparin | LC-MS/MS | 0.1-1000 | 
| Paclitaxel | Serum | Mouse | None | LC-MS/MS | 0.3-300 | 
| Paclitaxel | Serum | Dog | None | LC-MS/MS | 0.03-30 | 
| Paclitaxel | Plasma | Dog | Heparin | LC-MS/MS | 0.1-100 | 
| Paclitaxel | Serum | Porcine | None | LC-MS/MS | 0.03-100 | 
| Paclitaxel | Tissues | Porcine | None | LC-MS/MS | 0.3-500 | 
| Paclitaxel | Plasma | Rabbit | EDTA/Heparin | LC-MS/MS | 0.03-30 | 
| Paclitaxel | Serum | Rabbit | None | LC-MS/MS | 0.03-30 | 
| Paclitaxel and 6α-Hydroxy Paclitaxel Metabolite | Plasma | Human | EDTA | LC-MS/MS | 1-1000 | 
| Paclitaxel, 3-OH-Paclitaxel, & 6-OH-Paclitaxel | Dog & Rat Plasma | Heparin | LC-MS/MS | 0.100 | |
| Paraxanthine (1,7-Dimethylxanthine) | Plasma | Human | EDTA | LC-MS/MS | 25-20000 | 
| Paroxetine | Plasma | Human | EDTA | LC-MS/MS | 0.1-60 | 
| Phentermine | Plasma | Human | Heparin | LC-MS/MS | 2.5-500 | 
| Pioglitazone | Plasma | Human | EDTA | LC-MS/MS | 25-2500 | 
| Pioglitazone | Urine | Human | None | LC-MS/MS | 1-1000 | 
| Pioglitazone | Serum | Human | None | LC-MS/MS | 25-2500 | 
| Pioglitazone, Pioglitazone MIII, Pioglitazone MIV | Plasma | Human | EDTA | LC-MS/MS | 1-1000 | 
| Pioglitazone-MIII and -MIV | Plasma | Human | EDTA | LC-MS/MS | 2.5-2500 | 
| Pioglitazone-MIII and -MIV | Urine | Human | None | LC-MS/MS | 2.5-2500 | 
| Pioglitazone-MIII and -MIV | Plasma | Human | EDTA | LC-MS/MS | 25-2500 | 
| Propofol | Human Plasma | EDTA | LC-UV | 100-15000 | |
| Pseudoephedrine | Plasma | Human | EDTA | LC-MS/MS | 5-2500 | 
| Pseudoephedrine | Plasma | Human | EDTA | LC-MS/MS | 50-1000 | 
| Quetiapine | Plasma | Human | EDTA | LC-MS/MS | 0.5-500 | 
| Quetiapine Sulfoxide | Plasma | Human | EDTA | LC-MS/MS | 0.5-500 | 
| Raltegravir | Plasma | Human | EDTA/Heparin | LC-MS/MS | 2-1000 | 
| Rapamycin | Whole Blood (Lysed) | Dog | EDTA | LC-MS/MS | 0.1-100 | 
| Rapamycin | Arterial Tissue | Porcine | None | LC-MS/MS | 50-5000 | 
| Rapamycin | Arterial Tissue | Porcine | None | LC-MS/MS | 0.2-100 | 
| Rapamycin | Whole Blood (Lysed) | Cat | EDTA | LC-MS/MS | 0.1-100 | 
| Rapamycin | Whole Blood (Lysed) | Monkey | EDTA | LC-MS/MS | 0.1-100 | 
| Rapamycin | Whole Blood (Lysed) | Monkey | EDTA | LC-MS/MS | 1000-40000 | 
| Rapamycin | Arterial Tissue | Porcine | None | LC-MS/MS | 0.1-50 | 
| Rapamycin | Myocardial Tissue | Porcine | None | LC-MS/MS | 0.5-500 | 
| Rapamycin | Arterial Tissue | Porcine | None | LC-MS/MS | 0.5-500 | 
| Rapamycin | Whole Blood | Porcine | EDTA | LC-MS/MS | 0.1-100 | 
| Rapamycin | Liver Tissue | Porcine | None | LC-MS/MS | 0.5-500 | 
| Rapamycin | Kidney Tissue | Porcine | None | LC-MS/MS | 0.5-500 | 
| Rapamycin | Lung Tissue | Porcine | None | LC-MS/MS | 0.5-500 | 
| Rapamycin | Tissues | Porcine | None | LC-MS/MS | 0.5-500 | 
| Rapamycin | Whole Blood (Lysed) | Porcine | EDTA | LC-MS/MS | 0.1-100 | 
| Rapamycin | Whole Blood | Human | EDTA | LC-MS/MS | 0.1-100 | 
| Renzapride | Plasma | Human | EDTA/Heparin | LC-MS/MS | 0.1-10 | 
| Ribavirin | Plasma | Rat | EDTA | LC-MS/MS | 10-5000 | 
| Ribavirin | Plasma | Rat | EDTA | LC-MS/MS | 10-5000 | 
| Rifabutin | Plasma | Human | Heparin | LC-MS/MS | 1-1000 | 
| Rifampin | Plasma | Rabbit | Heparin | LC-MS/MS | 2.5-100 | 
| Rimonabant | Plasma | Human | EDTA | LC-MS/MS | 0.1-100 | 
| Risperidone and 9-Hydroxyrisperidone Metabolite | Plasma | Human | Heparin | LC-MS/MS | 0.1-100 | 
| Ritonavir | Plasma | Human | EDTA | LC-MS/MS | 25-12500 | 
| Rizatriptan | Plasma | Human | Heparin | LC-MS/MS | 0.3-100 | 
| Salicylic Acid | Plasma | Dog | EDTA | LC-MS/MS | 50-5000 | 
| Salicylic Acid | Plasma | Dog | Sodium Fluoride and Potassium Oxalate | LC-MS/MS | 500-150000 | 
| Scopolamine | Plasma | Human | EDTA | LC-MS/MS | 0.01-20 | 
| Serum Amyloid-A | Serum | Porcine | None | ELISA | 125-2000 | 
| Sildenafil and N-Desmethyl Sildenafil Metabolite | Plasma | Human | Heparin | LC-MS/MS | 1-500 | 
| Simvastatin & Simvastatin β-hydroxy Acid Metabolite | Plasma | Human | EDTA | LC-MS/MS | 0.05-10 | 
| Simvastatin and Simvastatin Hydroxy Acid Metabolite | Plasma | v | EDTA | LC-MS/MS | 0.05-100 | 
| Sitagliptin | Urine | Human | None | LC-MS/MS | 1-1000 | 
| Spironolactone | Plasma | Human | Heparin | LC-MS/MS | 1-1000 | 
| Sumatriptan | Plasma | Human | Heparin | LC-MS/MS | 0.5-500 | 
| Sunitinib and N-desethyl Sunitinib | Plasma | v | EDTA | LC-MS/MS | 1-100 | 
| Tacrolimus | Whole Blood | Human | EDTA | LC-MS/MS | 0.1-100 | 
| Tacrolimus | Whole Blood | Human | EDTA | LC-MS/MS | 0.1-100 | 
| Tamoxifen | Plasma | Human | Heparin | LC-MS/MS | 0.5-500 | 
| Temozolomide | Plasma | Rat | Heparin | LC-MS/MS | 10-2000 | 
| Tenofovir | Plasma | Human | EDTA | LC-MS/MS | 5-500 | 
| Tesaglitazar | Plasma | Mouse | EDTA | LC-MS/MS | 1-1000 | 
| Testosterone | Plasma and Serum | Porcine | EDTA | LC-MS/MS | 0.1-20 | 
| Theophylline | Plasma | Human | Heparin | LC-UV | 300-20000 | 
| Tiagabine | Plasma | Human | EDTA | LC-MS/MS | 0.5-500 | 
| Tissue Plasminogen Activator (tPA or PLAT) | Plasma | Rabbit | EDTA | ELISA | 15.6-500 | 
| Total Glucagon-Like Peptide-1 (GLP-1) | Plasma | Human | EDTA | ECL | 2.44-2500 | 
| Total Glucagon-Like Peptide-1 (GLP-1) | Plasma | Human | EDTA | ELISA | 2-100 | 
| Total Protein Content | White Blood Cell Lysate | Human | None | Spectrometer | 150-2000 | 
| Total Protein Content | White Blood Cell Lysate | Human | None | Spectrometer | 25-2000 | 
| Warfarin (R and S enantiomers separated) | Plasma | Human | Heparin | LC-MS/MS | 1-1000 | 
| Ziprasidone | Plasma | Human | EDTA | LC-MS/MS | 0.2-200 |