List of Validated Assays

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Parent Compound Method Matrix LLOQ
1-Methylnicotinamide LC/MS/MS Dog Sodium Citrate Plasma  
1-Methylnicotinamide LC/MS/MS Human Sodium Citrate Plasma  
1-Methylnicotinamide LC/MS/MS Human Urine  
25-Hydroxycholesterol LC/MS/MS Tissue 0.1 ng/mL
2-Arachidonoylglycerol
(2-AG)
LC/MS/MS Human Plasma, Blood 20 pg/mL
Acetyl-Coenzyme A LC/MS/MS Tumor Tissue 100 ng/g
ACTH (1-24) LC/MS/MS K2EDTA Human Plasma 0.5 ng/mL
ACTH(1-24) LC/MS/MS K2EDTA Monkey Plasma 0.05 ng/mL
ACTH(1-24) LC/MS/MS K2EDTA Rat Plasma 0.05 ng/mL
ACTH(1-24) LC/MS/MS K2EDTA Rat Plasma 10 pg/mL
Adapalene LC/MS/MS K3EDTA Human Plasma 10 pg/mL
Adenosine LC/MS/MS Plasma  
Agomelatine LC/MS/MS K2EDTA Human Plasma 0.05 ng/mL
Aldosterone LC/MS/MS Human Urine 0.1 ng/mL
Aldosterone LC/MS/MS K2EDTA Human Plasma 10 pg/mL
Alloprenanolone LC/MS/MS Human Plasma 25 pg/mL
Almotriptan LC/MS/MS K2EDTA Human Plasma 0.5 ng/mL
Aluminum ICP-MS K2EDTA Human Plasma  
Amino Acids LC/MS/MS Cell Culture Media  
Amino Acids LC/MS/MS K2EDTA Human Plasma  
Amphetamine (Chiral) LC/MS/MS Chiral K2EDTA Human Plasma 0.2 ng/mL
Angiotensin I LC/MS/MS K2EDTA Human Plasma 0.14 ng/mL
Angiotensin II Immunoassay K2EDTA Human Plasma 3.9 pg/mL
Anti-IIa   Human Citric Acid Plasma  
Anti-Xa   Human Citric Acid Plasma  
Apimostinel LC/MS/MS K2EDTA Human Plasma  
Apixaban LC/MS/MS Bovine Plasma 1 ng/mL
Apremilast LC/MS/MS Human Plasma 2 ng/mL
Apremilast LC/MS/MS K2EDTA Human Plasma  
Arachidonic Acid LC/MS/MS Cerebrospinal Fluid 0.5 ng/mL
Arachidonic Acid LC/MS/MS K2EDTA Human Plasma 50 ng/mL
Arachidonic Acid, HETE, LTB4 LC/MS/MS Cell Culture Media 0.025 µM
Arachidonoy Glycerol (2AG) LC/MS/MS Human Plasma 0.1 ng/mL
Arachidonoyl 1-Glycerol LC/MS/MS Cerebrospinal Fluid 10 pg/mL
Arachidonoyl 1-Glycerol LC/MS/MS K2EDTA Human Plasma 0.5 ng/mL
Arachidonoyl 2-Glycerol LC/MS/MS Cerebrospinal Fluid 10 pg/mL
Arachidonoyl 2-Glycerol LC/MS/MS K2EDTA Human Plasma 0.5 ng/mL
Arachidonoyl Ethanolamide LC/MS/MS Cerebrospinal Fluid 1 pg/mL
Arachidonoyl Ethanolamide LC/MS/MS K2EDTA Human Plasma 0.05 ng/mL
Arachidonoyl Taurine LC/MS/MS Cerebrospinal Fluid 100 pg/mL
Arachidonoyl Taurine LC/MS/MS K2EDTA Human Plasma 0.5 ng/mL
Arginase Activity Immunoassay Human Serum 0.06 nM
Aripiprazole and Dehydroaripiprazole LC/MS/MS K2EDTA Human Plasma  
Artesunate LC/MS/MS Human Urine  
Ascorbic Acid  LC/MS/MS Human Tissue and Lavage Fluid 20 ng/mL
Atogepant LC/MS/MS Human Plasma  
Atogepant LC/MS/MS Human Urine  
Atorvastatin, 2-Hydroxy Atorvastatin, 4-Hydroxy Atorvastatin  LC/MS/MS K2EDTA Human Plasma 0.2 ng/mL
Aztreonam LC/MS/MS Human Plasma 0.2 µg/mL
Aztreonam LC/MS/MS Human Urine 0.2 µg/mL
Beclomethasone Dipropionate and its metabolites and Triamcinolone Acetonide   Dog Matrices  
Betaxolol LC/MS/MS K2EDTA Human Plasma 0.5 ng/mL
Bile Acids LC/MS/MS Feces 10 ng/mL
Bile Acids LC/MS/MS K2EDTA Human Plasma 10 ng/mL
Bimatoprost and its Metabolite LC/MS/MS Human Plasma  
Bimatoprost and its Metabolite LC/MS/MS Mini Pig K2EDTA Blood  
Biotin LC/MS/MS Serum  
Bosentan LC/MS/MS K2EDTA Human Plasma 5 ng/mL
Bosenton (Hydroxy Metabolite) LC/MS/MS K2EDTA Human Plasma 0.5 ng/mL
Brinzolamide LC/MS/MS K2EDTA Human Plasma 0.05 µg/mL
Bromide ICP-MS Na Heparin Human Plasma 0.5 µg/mL
Bromocriptine LC/MS/MS K2EDTA Human Plasma 2 pg/mL
Budesonide LC/MS/MS K2EDTA Human Plasma 5 pg/mL
Bupremorphine and Norbuprenorphine LC/MS/MS K2EDTA Rabbit Plasma 0.2 ng/mL
Bupremorphine and Norbuprenorphine and Naloxone LC/MS/MS K2EDTA Dog Plasma  
Buprenorphine LC/MS/MS Human Urine 20 pg/mL
Buprenorphine LC/MS/MS K2EDTA Human Plasma 20 pg/mL
Buprenorphine Hemiadipate LC/MS/MS Human Urine 0.5 pg/mL
Buprenorphine Hemiadipate LC/MS/MS K2EDTA Dog Plasma 0.5 pg/mL
Buprenorphine Hemiadipate LC/MS/MS K2EDTA Human Plasma 0.5 pg/mL
C4(7α-hydroxy-4-cholesten-3-one) LC/MS/MS Human Serum  
C4(7α-hydroxy-4-cholesten-3-one) LC/MS/MS K2EDTA Human Plasma  
Caffeine LC/MS/MS Human Serum 0.05 µg/mL
Caffeine LC/MS/MS Human Sodium Heparin Plasma  
Caffeine LC/MS/MS K2EDTA Human Plasma 5 ng/mL
Calcium ICP/MS Human Serum 10 µg/mL
Carbamazepine LC/MS/MS K2EDTA Human Plasma 0.1 µg/mL
Carbamazepine (10,11-Epoxide Metabolite) LC/MS/MS K2EDTA Human Plasma 0.025 µg/mL
Carbocysteine LC/MS/MS K2EDTA Human Plasma 30 ng/mL
Carfentanyl LC/MS/MS Animal Plasma & Tissue  
Cariprazine and Metabolics LC/MS/MS K2EDTA Human Plasma  
Cariprazine and Metabolics LC/MS/MS K2EDTA Rat Plasma  
Cariprazine, Desmethyl Cariprazine and Didesmethyl Cariprazine   K2EDTA Dog Plasma  
Cariprazine, Desmethyl Cariprazine and Didesmethyl Cariprazine LC/MS/MS K2EDTA Human Plasma  
Cariprazine, Desmethyl Cariprazine and Didesmethyl Cariprazine   K2EDTA Rat Plasma  
Catecholamine LC/MS/MS Human Plasma 10 pg/mL
Cebranopadol and Metabolites LC/MS/MS K2EDTA Human Plasma 0.5 pg/mL
Cefepime and Tazobactam LC/MS/MS Human Sodium Heparin Plasma 0.25 μg/ml
Cefepime and Tazobactam LC/MS/MS Human Urine 15 & 45 μg/mL
Cefiderocol LC/MS/MS Human BAL 0.005 µg/mL
Cefiderocol LC/MS/MS Human Plasma 0.1 µg/mL
Cefiderocol LC/MS/MS Dialysate 0.2 µg/mL
Cefiderocol LC/MS/MS Bovine Plasma 0.2 µg/mL
Ceftaroline   Human Plasma & Serum  
Ceftaroline and Metablites LC/MS/MS Human Na2EDTA/NaF Plasma  
Ceftaroline and Metabolites LC/MS/MS Human Urine 0.5 µg/mL
Ceftaroline and Metabolites LC/MS/MS K2EDTA Human Plasma 50 ng/mL
Ceftazidime and Avibactam LC/MS/MS Cell Culture Medium  
Ceftazidime and Avibactam LC/MS/MS Human Sputum  
Ceftazidime and Avibactam LC/MS/MS NaF/KOx Human Plasma  
Cenicriviroc LC/MS/MS M-I, M-II protein binding  
Cetirizine LC/MS/MS K2EDTA Minipig Plasma 0.025 ng/mL
cGAMP LC/MS/MS Human Plasma 10 ng/mL
Chlorogenic Acid HPLC/UV K2EDTA Human Plasma  
Chlorpheniramine (Chiral) LC/MS/MS Chiral K2EDTA Human Plasma 0.05 ng/mL
Chlorpromazine LC/MS/MS K2EDTA Human Plasma 0.5 ng/mL
Cilastatin & Imipenem LC/MS/MS K2EDTA Human Plasma 50 ng/mL
Citalopram LC/MS/MS K2EDTA Human Plasma 1 ng/mL
Citalopram (Desmethyl Metabolite) LC/MS/MS K2EDTA Human Plasma 1 ng/mL
Clarithromycin LC/MS/MS Human Plasma 10 ng/mL
Clarithromycin LC/MS/MS Human BAL 1 ng/mL
Colistin   Cell Media  
Colistin LC/MS/MS Human Urine 10 ng/mL
Colistin LC/MS/MS K2EDTA Rat Plasma 10 ng/mL
Colistin LC/MS/MS Rat Lung 100 ng/g
Colistin Methanesulfonate (Free and Total) LC/MS/MS Human Urine 10 ng/mL
Colistin Methanesulfonate (Free and Total) LC/MS/MS K2EDTA Rat Plasma 10 ng/mL
Colistin Methanesulfonate (Free and Total) LC/MS/MS Rat Lung 100 ng/g
Cortisol LC/MS/MS K2EDTA Human Plasma 0.25 ng/mL
Creatine LC/MS/MS K2EDTA Human Plasma 2 µg/mL
Creatinine LC/MS/MS K2EDTA Human Plasma 0.4 µg/mL
Dalbavancin LC/MS/MS Cell Medium  
Dalbavancin LC/MS/MS Human Plasma  
Dalbavancin   Rabbit Serum  
Dapsone, N-acetyl Dapsone and N-hydroxy Dapsone LC/MS/MS K3EDTA Human Plasma with Ascorbic Acid  
Dapsone, N-acetyl Dapsone and N-hydroxylamine Dapsone LC/MS/MS Human Plasma  
Delafloxacin LC/MS/MS Human BAL 0.1 ng/mL
Dexamethasone LC/MS/MS K2EDTA Human Plasma 10 pg/mL
DHA-Glucuronide LC/MS/MS K2EDTA Human Plasma  
Digoxin LC/MS/MS Human Urine 1 ng/mL
Digoxin LC/MS/MS K2EDTA Human Plasma 0.1 ng/mL
Dimethyl Arginine LC/MS/MS Human Serum 10 ng/mL
Diphenylhdramine LC/MS/MS K2EDTA Human Plasma 0.1 ng/mL
Docohexaenoic Acid LC/MS/MS Cerebrospinal Fluid 0.5 ng/mL
Docohexaenoic Acid LC/MS/MS K2EDTA Human Plasma 50 ng/mL
Donepezil and Memantine LC/MS/MS K2EDTA Human Plasma  
Donepezil and Metabolites LC/MS/MS K2EDTA Rat Plasma  
Dopamine LC/MS/MS K2EDTA Human Plasma 10 pg/mL
Doripenem LC/MS/MS Human Sodium Heparin Plasma 0.1μg/ml
Dronedarone LC/MS/MS K2EDTA Human Plasma 0.2 ng/mL
Dronedarone (Desbutyl Metabolite) LC/MS/MS K2EDTA Human Plasma 0.2 ng/mL
Drug Antibody Conjugate LC/MS/MS K2EDTA Human Plasma 10 nM
Dulaglutide LC/MS/MS Monkey Plasma  
Duloxetine LC/MS/MS K2EDTA Human Plasma 0.5 ng/mL
Edoxaban LC/MS/MS Bovine Plasma 5 ng/mL
Efavirenz, Emtricitabine and Tenofovir LC/MS/MS K2EDTA Human Plasma  
Eluxadoline LC/MS/MS Human Protein Binding  
Eluxadoline LC/MS/MS Human Urine  
Eluxadoline LC/MS/MS K2EDTA Human DBS  
Eluxadoline LC/MS/MS K2EDTA Human Dried Blood 0.1 ng/mL
Eluxadoline LC/MS/MS K2EDTA Human Plasma  
Entecavir LC/MS/MS K2EDTA Human Plasma 10 pg/mL
Ephedrine & Pseudoephedrine LC/MS/MS K2EDTA Human Plasma 0.5 ng/mL
Epinephrine LC/MS/MS K2EDTA Human Plasma 10 pg/mL
Epinephrine LC/MS/MS Rabbit Plasma  
Ethanolamides LC/MS/MS K2EDTA Human Plasma  
Factor Xa Chromogenic Human Serum 0.1 IU
Fatty Acid Ethanolamides LC/MS/MS K2EDTA Human Plasma  
Febtanyl LC/MS/MS Human Plasma 0.1 ng/mL
Febuxastat LC/MS/MS K2EDTA Human Plasma  
FGF19 ELISA K2EDTA Human Plasma  
Flecainide LC/MS/MS K2EDTA Human Plasma 1 ng/mL
Fluoride IC/ICP/MS Human Serum 10 ng/mL
Fluoride IC/ICP/MS Rat Serum  
Flupirtine LC/MS/MS K2EDTA Human Plasma 2 ng/mL
Fluticasone LC/MS/MS K2EDTA Human Plasma  
Fluticasone Propionate LC/MS/MS K2EDTA Human Plasma 2 pg/mL
Fluticasone Propionate LC/MS/MS Swab  
Formeterol LC/MS/MS NaF/K2C2O4 Human Plasma  0.4 pg/mL
Fosfomycin LC/MS/MS Human Urine  
Fosfomycin LC/MS/MS K2EDTA Human Plasma  
Free T3 and T4 Chemiluminescent immunoassay Human Serum  
Gamma Hydroxy Butyric Acid (GHB) and Gamma Amino Butyric Acid (GABA) LC/MS/MS Plasma  
GDP Fucose LC/MS/MS Cell Culture Media 5 ng/mL
Glutarate,  2-Hydroxy LC/MS/MS Cell Culture Media 2.5 ng/mL
GRT6005 and GRT6006 LC/MS/MS K2EDTA Human Plasma  
HETE LC/MS/MS Human Plasma 100 pg/mL
Histamine LC/MS/MS K2EDTA Human Plasma 0.1 ng/mL
Histamine Panel LC/MS/MS Feces  
HTL0018318 and HTL0026803 LC/MS/MS K3EDTA Human Plasma 0.5 ng/mL
Hydromorphone LC/MS/MS K2EDTA Human Plasma 0.05 ng/mL
Hydroxybutyric Acid LC/MS/MS Human Urine 0.25 µg/mL
Idebenone LC/MS/MS K2EDTA Human Plasma 0.05 ng/mL
Idebenone, Total LC/MS/MS K2EDTA Human Plasma 50 ng/mL
Indole LC/MS/MS Rat Urine  
Inositol LC/MS/MS Human Serum 1 µg/mL
Iodine ICP-MS Media  
Iron Sucrose ICP-MS Human Serum 1 ng/mL
Isosorbide-5-Mononitrate LC/MS/MS Blood, Urine, liver  
Ivabradine LC/MS/MS K2EDTA Human Plasma 0.01 ng/mL
Ivermectin B1a LC/MS/MS K2EDTA Human Plasma 0.4 ng/mL
Ivermectin B1b LC/MS/MS K2EDTA Human Plasma 40 pg/mL
Ketamine and Norketamine LC/MS/MS Human Plasma 1 ng/mL
Ketoconazole LC/MS/MS K2EDTA Human Plasma 0.05 µg/mL
Ketoprofen LC/MS/MS K2EDTA Human Plasma 10 ng/mL
Ketorolac LC/MS/MS Human Sodium Heparin Plasma  
Kynurenines LC/MS/MS Human Plasma 1 ng/mL
Kynurenines LC/MS/MS Plasma  
Lactic + Succinic Acid LC/MS Formulations  
L-Arginine LC/MS/MS Heparinized Human Plasma 1 µg/mL
Latanoprost and Latanoprost Free Acid LC/MS/MS NaF/KOx Human Plasma  
Levofloxacin LC/MS/MS BAL  
Levofloxacin LC/MS/MS BAL AM Pellet  
Levomilnacipran LC/MS/MS K2EDTA Human Plasma  
Levothyroxine (Free T4) Immunoassay Human Serum 0.3 ng/mL
Levothyroxine (Total T4) LC/MS/MS Human Serum 10 ng/mL
Linaclotide and MM-419447 LC/MS/MS Human Breast Milk  
Linagliptin LC/MS/MS K2EDTA Human Plasma  
Liothyronine (Free T3) Immunoassay Human Serum 1 pg/mL
Liothyronine (Total T3) LC/MS/MS Human Serum 0.1 ng/mL
Lipoic Acid LC/MS/MS Tissue 0.1 ng/mL
Lornoxicam LC/MS/MS K2EDTA Human Plasma 2 ng/mL
Lovastatin , Lovastatin Hydroxy Acid  LC/MS/MS K2EDTA Human Plasma 0.5 ng/mL
L-Threonate LC/MS/MS Human Plasma  
L-Threonic Acid LC/MS/MS Plasma  
Lurasidone LC/MS/MS K2EDTA Human Plasma  
Lysophosphatidyl acid  LC/MS/MS K2EDTA Mouse Plasma 10 nM
Lysophosphatidylcholine LC/MS/MS K2EDTA Mouse Plasma 10 nM
Malonyl Coenzyme A LC/MS/MS Tissue 10 ng/g
Melatonin LC/MS/MS K2EDTA Human Plasma 1 pg/mL
Melatonin and Theanine LC/MS/MS Human Plasma  
Mercaptopurine LC/MS/MS K2EDTA Human Plasma  
Methotrexate LC/MS/MS K2EDTA Human Plasma 1 ng/mL
Methylamine LC/MS/MS Human Plasma  
Methylene Blue LC/MS/MS Mouse Plasma  
MethylHistamine LC/MS/MS Human Plasma 0.1 ng/mL
Methylphenidate LC/MS/MS K2EDTA Human Plasma 0.1 ng/mL
Methylphenidate LC/MS/MS K2EDTA Human Plasma 0.1 ng/mL
Mevalonic Acid LC/MS/MS Human Urine 5 ng/mL
Midazolam and 1-hydroxymidazolam LC/MS/MS K2EDTA Human Plasma 0.05 ng/mL
Mometasone Furoate LC/MS/MS K2EDTA Human Plasma 2 pg/mL
Mometasone Furoate LC/MS/MS K2EDTA Rabbit Plasma 10 pg/mL
Mono- & Triphosphate Nucleotides (AMP, CMP, GMP, UMP; ATP, CTP, GTP, UTP) LC/MS/MS Mouse Plasma  
Morphine LC/MS/MS K2EDTA Human Plasma 0.5 ng/mL
Morphine Glucuronide LC/MS/MS K2EDTA Human Plasma 2 ng/mL
Moxifloxocin LC/MS/MS K2EDTA Human Plasma  
NAD+ LC/MS/MS Human Red Blood Cell  
NAD+ LC/MS/MS Human Sodium Citrate Plasma  
NAD+ and Metabolites LC/MS/MS Human Whole Blood  
NAD+ and Metabolites LC/MS/MS Rat Whole Blood  
Nafithromycin LC/MS/MS Human Plasma  
Nafithromycin and N-desmethyl-Nafithromycin LC/MS/MS K2EDTA Human Plasma  
Naloxone LC/MS/MS Human Urine 5 pg/mL
Naloxone LC/MS/MS K2EDTA Human Plasma 1 pg/mL
Naloxone LC/MS/MS K3EDTA Human Plasma 2 pg/mL
Naloxone LC/MS/MS Mini Pig K2EDTA Plasma 2 pg/mL
Naloxone, Buprenorphine and Norbuprenorphine LC/MS/MS K2EDTA Human Plasma  
Naloxone-3-Glucuronide LC/MS/MS K2EDTA Human Plasma 50 pg/mL
Nebivolol, Chiral LC/MS/MS K2EDTA Human Plasma 10 pg/mL
Nebivolol, Total LC/MS/MS K2EDTA Human Plasma 0.5 ng/mL
Neurosteroids LC/MS/MS Human Plasma  
Nicotinamide LC/MS/MS Human Sodium Citrate Plasma  
Norbuprenorphine LC/MS/MS Human Urine 20 pg/mL
Norbuprenorphine LC/MS/MS K2EDTA Human Plasma 20 pg/mL
Norepinephrine LC/MS/MS K2EDTA Human Plasma 10 pg/mL
NR LC/MS/MS Human Whole Blood  
NRX-2922 LC/MS/MS Human CSF  
NRX-2922 LC/MS/MS Human Urine  
NRX-2922 LC/MS/MS K2EDTA Human Plasma  
NRX-2922 LC/MS/MS K2EDTA Rat Plasma  
NRX-2922 LC/MS/MS Rat Brain  
NRX-2922 LC/MS/MS Rat CSF  
Nucleotides LC/MS/MS Cell Culture Media 5 ng/mL
Nucleotides LC/MS/MS Human Serum 5 ng/mL
Oleoyl Ethanolamide LC/MS/MS Cerebrospinal Fluid 5 pg/mL
Oleoyl Ethanolamide LC/MS/MS K2EDTA Human Plasma 0.25 ng/mL
Oleoyl Taurine LC/MS/MS Cerebrospinal Fluid 100 pg/mL
Oleoyl Taurine LC/MS/MS K2EDTA Human Plasma 0.5 ng/mL
Oligonucleotide      
Oligonucleotides LC/MS/MS Plasma  
Omadacycline LC/MS/MS Acidified Human Cell Pellet  
Omadacycline HPLC Dosing Solution  
Omadacycline LC/MS/MS Human Cell Pellet  
Omadacycline LC/MS/MS Rat Heparin Plasma  
Omadacycline LC/MS/MS Rat Plasma  
Orotic Acid & Dihydroorotic Acid LC/MS/MS Human Plasma 5 ng/mL
Oxycodone LC/MS/MS K2EDTA Human Plasma 0.5 ng/mL
Oxymetazoline Impurity A LC/MS/MS Mini Pig K2EDTA Plasma  
Palmitic Acid LC/MS/MS Tumor Tissue 100 ng/g
Palmitoyl Ethanoamide LC/MS/MS Cerebrospinal Fluid 5 pg/mL
Palmitoyl Ethanoamide LC/MS/MS K2EDTA Human Plasma 0.25 ng/mL
Palmitoyl Taurine LC/MS/MS Cerebrospinal Fluid 100 pg/mL
Palmitoyl Taurine LC/MS/MS K2EDTA Human Plasma 0.5 ng/mL
Paroxetine LC/MS/MS K2EDTA Human Plasma  
Peptide A6 LC/MS/MS Swine Plasma  
Phenylephrine LC/MS/MS K2EDTA Human Plasma 10 pg/mL
Picolinic Acid   Plasma  
Piperacillin, Meropenem, & Tazobactam LC/MS/MS Rabbit Plasma 0.1 µg/mL
Piperacillin, Meropenem, & Tazobactam LC/MS/MS K2EDTA Human Plasma 0.2 µg/mL
Plasma Renin Activity LC/MS/MS K2EDTA Human Plasma 0.05 ng/mL/hr
Platinum ICP-MS K2EDTA Human Plasma, Mouse Plasma & Tissue 1 µg/mL
Poloxamer 124 LC/MS/MS Acidified K2EDTA Dog Plasma  
Poloxamer 124 LC/MS/MS K2EDTA Dog Plasma 1 µg/mL
Posaconazole LC/MS/MS K2EDTA Human Plasma 1 ng/mL
Potassium ICP-MS Human Urine 20 µg/mL
Pravastatin LC/MS/MS K2EDTA Human Plasma 0.5 ng/mL
Pregnenolone & Allopregnanolone LC/MS/MS Human Plasma 25 pg/mL
Pregnenolone & Allopregnanolone Sulfates LC/MS/MS Human Plasma 250 pg/mL
Propranolol and Mannitol LC/MS/MS Krebs-Ringer Buffer  
Pseudoephedrine LC/MS/MS K2EDTA Human Plasma 1 ng/mL
Pterostilbene LC/MS/MS Human Serum 0.5 ng/mL
Pyruvic Acid LC/MS/MS Human Urine 0.05 µg/mL
Ranolazine LC/MS/MS K2EDTA Human Plasma  
Rapastinel LC/MS/MS Human Plasma  
Rapastinel LC/MS/MS K2EDTA Human Plasma  
R-Baclofen and AP LC/MS/MS K2EDTA Human Plasma  
Relamorelin LC/MS/MS K2EDTA Human Plasma  
Relamorelin LC/MS/MS K2EDTA Mouse Plasma 0.25 ng/mL
R-Ketorolac and S-Ketorolac LC/MS/MS Human Sodium Heparin Plasma 5 ng/mL
Roflumilast and Roflumilast N-Oxide LC/MS/MS Human Lithium Heparin Plasma 0.1 ng/mL
Rosuvastatin, N-Desmethyl Rosuvastatin  LC/MS/MS K2EDTA Human Plasma 0.2 ng/mL
Salmeterol LC/MS/MS K2EDTA Human Plasma 2 pg/mL
Selenium ICP/MS Human Serum 100 ng/mL
Sepin-1 HPLC-UV Dosing Solution  
Sepin-1 LC/MS/MS K2EDTA Rat Blood  
Serotonin LC/MS/MS Various 1 ng/mL
Sertraline LC/MS/MS K2EDTA Human Plasma 1 ng/mL
Sertraline (Desmethyl Metabolite) LC/MS/MS K2EDTA Human Plasma 1 ng/mL
Short Chain Fatty Acids GC/MS Formulations  
Silcone ICP/MS K2EDTA Human Plasma 10 µg/mL
Sildenafil and N-Desmethyl Sildenafil LC/MS/MS Sodium Heparin Human Plasma 1 ng/mL
Silicon ICP-MS K2EDTA Human Plasma  
Silodosin and 2 Metabolites   Human Lithium Heparin Plasma  
Simvastatin, Simvastatin Hydroxy Acid  LC/MS/MS K2EDTA Human Plasma 0.5 ng/mL
Sitagliptin LC/MS/MS K2EDTA Human Plasma 1 ng/mL
Solifenacin and Metabolites LC/MS/MS K2EDTA Rat Plasma  
Statin LC/MS/MS Mouse Plasma and Mouse Muscle  
Stearoyl Taurine LC/MS/MS Cerebrospinal Fluid 100 pg/mL
Stearoyl Taurine LC/MS/MS K2EDTA Human Plasma 0.5 ng/mL
Sulbactam sodium and EXT2514 LC/MS/MS Human BAL 2 ng/mL
Tebipenem LC/MS/MS Human BAL 1 ng/mL
Threonate LC/MS/MS K2EDTA Human Plasma  
Threonic Acid LC/MS/MS Human Plasma 0.5 ug/mL
Thyrotropin Stimulating Hormone (TSH) Immunoassay Human Serum 0.2 µIU/mL
Tigecycline LC/MS/MS Acidified Human Cell Pellet  
Tigecycline LC/MS/MS Human Cell Pellet  
Tiotropium LC/MS/MS K2EDTA Human Plasma 0.5 pg/mL
Total T3 and T4 Chemiluminescent immunoassay Human Serum  
Total T3 and T4 LC/MS/MS Human Serum  
Triglyceride Enzymatic Colorimetric Assay Human Serum 20 mg/dL
TSH Chemiluminescent immunoassay Human Serum  
Ubrogepant LC/MS/MS K2EDTA Human Plasma  
Ulipristal Acetate and N-Desmethyl Ulipristal Acetate LC/MS/MS Human Plasma  
Ulipristal Acetate and N-Desmethyl Ulipristal Acetate LC/MS/MS Human Urine  
Ulipristal Acetate and N-Desmethyl Ulipristal Acetate LC/MS/MS Protein Binding  
Undecylenic Acid LC/MS/MS K2EDTA Mouse Plasma  
Undecylenic Acid LC/MS/MS Mini Pig K2EDTA Plasma  
Urea LC/MS/MS Human BAL  
Urea LC/MS/MS Human Bronchoalveolar Lavage 0.2 µg/mL
Urea LC/MS/MS Human Plasma  
Urea LC/MS/MS Human Sodium Heparin Plasma  
Urea LC/MS/MS Human Sodium Heparin Plasma  
Urea LC/MS/MS KOx/NaF Human Plasma 100 µg/mL
Urea LC/MS/MS Mice Ball  
Urea LC/MS/MS Mice Plasma  
Urea LC/MS/MS Mouse BAL  
Urea LC/MS/MS Mouse Sodium Heparine Plasma  
Uric Acid LC/MS/MS Human Tissue and Lavage Fluid 5 ng/mL
Uridine LC/MS/MS Human Plasma 0.1 µg/mL
Uridine, Uric Acid and cAMP LC/MS/MS Plasma  
Valsartan LC/MS/MS K2EDTA Human Plasma 5 ng/mL
Venlafaxine LC/MS/MS K2EDTA Human Plasma 1 ng/mL
Venlafaxine (Desmethyl Metabolite) LC/MS/MS K2EDTA Human Plasma 1 ng/mL
Vilazodone   Human Plasma  
Vilazodone LC/MS/MS K2EDTA Rabbit Plasma 2 ng/mL
Vilazodone LC/MS/MS K2EDTA Rat Plasma 2 ng/mL
Vilazodone (M17 Metabolite) LC/MS/MS K2EDTA Rabbit Plasma 1 ng/mL
Vilazodone (M17 Metabolite) LC/MS/MS K2EDTA Rat Plasma 1 ng/mL
Vildagliptin LC/MS/MS K2EDTA Human Plasma  
Vitamin B6 LC/MS/MS K2EDTA Human Plasma 0.2 ng/mL
Vitamin D2,  1, 25-Dihydroxy  LC/MS/MS Human Serum 10 pg/mL
Vitamin D2, 25-Hydroxy LC/MS/MS Human Serum 5 ng/mL
Vitamin D3 LC/MS/MS K2EDTA Human Plasma 0.5 ng/mL
Vitamin D3,  1, 25-Dihydroxy  LC/MS/MS Human Serum 10 pg/mL
Vitamin D3, 25-Hydroxy LC/MS/MS Human Serum 5 ng/mL
Vitamin D3, 25-Hydroxy LC/MS/MS K2EDTA Human Plasma 1 ng/mL
Vortioxetine LC/MS/MS K2EDTA Human Plasma  
Zidebactam and Cefepime LC/MS/MS Human BAL  
Zidebactam and Cefepime LC/MS/MS Human BAL AM Pellet and BAL ELF  
Zidebactam and Cefepime LC/MS/MS Human Sodium Heparin Plasma  
Zidebactam and Cefepime LC/MS/MS Human Urine  

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