List of Validated Assays

Validated Assays

Tandem Labs was built on partnerships with pharmaceutical companies providing creative methods development and validation of hundreds of proprietary compounds. We are currently building our suite of validated assays and welcome requests for assays that meet your specific needs.

Validated non-proprietary assays currently offered:

List of Validated Assays
ALL A-F G-L M-R S-Z  
COMPOUND MATRIX CALIBRATION RANGE Anti-Coag LTMS TEMP
Acamprosate Human Plasma 0.500 to 200 ng/mL -
AFMU Human Urine 100 – 20,000 ng/mL None 244 -20
Aliskiren Human Plasma 1.00 – 500 ng/mL K2EDTA 204 -20
Amlodipine Human Plasma 0.500 – 100 ng/mL EDTA 47 -20
Amprenavir Human Plasma 10.0 – 10,000 ng/mL K3EDTA 72 -20
Aprepitant Human Plasma 10.0 – 5,000 ng/mL K3EDTA 214 -20
Armodafinil Human Plasma 100 – 10,000 ng/mL K3EDTA 102 -20
Atazanavir(NJ) Human Plasma 5.0 - 2,500 ng/mL K2EDTA 49 -20,-70
Atazanavir / Ritonavir Human Plasma 1.00 – 1,000 ng/mL EDTA -20
Atazanavir / Ritonavir Human Plasma 10.0 – 5,000 ng/mL K3EDTA 446 -20
Atorvastatin/ o-Hydroxy / p-Hydroxy Human Plasma 0.300 - 50.0 ng/mL K2EDTA 220 -20
Atorvastatin/ o-Hydroxy / p-Hydroxy Human Plasma 0.300 - 50.0 ng/mL K2EDTA 224 -70
Atorvastatin / Lactone / o-Hydroxy / p-Hydroxy Human Plasma 0.100 – 100 ng/mL K2EDTA 224 -70
Budesonide Human Plasma 10.0 to 5,000 pg/mL K2EDTA 123 -20
Buproprion/ Hydroxybuproprion/
Ethrohydroxybupropion / Threohydroxybuproprion		 Human Plasma 1.00 – 1,000 ng/mL K2EDTA 223 -70
Caffeine Human Plasma 10.0 - 10,000 ng/mL K2EDTA 223 -20
Capcitebine / 5'-Deoxy-5-fluorocytidine / 5'-Deoxy-5-fluorouidine Human Plasma 10.0 – 5,000 ng/mL Na2 EDTA 240 -20
Carboplatin Human Plasma
Ultrafiltrate		 50.0 – 40,000 ng/mL K2EDTA 262 -70
Carvedilol(NJ) Human Plasma 0.200 – 200 ng/mL EDTA 560 -70
Cinacalcet Human Plasma 0.100 – 50.00 ng/mL K3EDTA 252 -20
Ciprofloxacin / Levofloxacin / Moxifloxacin Human Plasma 10.0 – 1,000 ng/mL
Cyclobenzaprine Human Plasma 0.100 – 50.0 ng/mL K2EDTA 121 -20
Cytarabine/Ara-U Human Plasma 200 – 50,000 ng/mL K2EDTA 258 -20
Darifenacin Human Plasma 50.0 – 10,000 pg/mL K2EDTA 119 -20
Daunorubicin Human Plasma 0.100 – 10.0 ng/mL EDTA 200 -70
Daunorubicin/Daunorubicinol Rat Plasma 10.0 – 1,000 ng/mL EDTA 211 -70
Daunorubicin/Daunorubicinol Dog Plasma 10.0 – 1,000 ng/mL EDTA 211 -70
Dexlansoprazole Human Plasma 2.00 – 2,000 ng/mL K2EDTA 104 -20
Dexlansoprazole Human Plasma 2.00 – 2,000 ng/mL K2EDTA 84 -70
Dextromethorphan/Dextrorphan Human Plasma 0.500 - 250 ng/mL K2EDTA 273 -20
Dextromethorphan/Dextrorphan Human Urine 1.00 – 500 ng/mL K2EDTA 89 -20
Diclofenac Human Plasma 0.100 – 100 ng/mL NaHep 64 -20
Diclofenac Human Plasma 10.00 – 2,000 ng/mL K2EDTA 84 -20
Digoxin Human Plasma 0.100 to 50.0 ng/mL K2EDTA 177 -20
Docetaxel Human Plasma 5.00 – 5,000 ng/mL K2EDTA 80 -20
Donepezil Human Plasma 0.100 – 100 ng/mL K3EDTA 206 -20
Doxorubicin/Doxorubicinol Human Plasma 1.00 – 1,000 ng/mL EDTA 211 -70
Duloxetine Human Plasma 0.200 – 100 ng/mL K3EDTA 184 -20
Efavirenz Human Plasma 10.0 – 10,000 ng/mL K2EDTA 260 -20
Emtracitabine Human Plasma 5.00 – 5,000 ng/mL K2EDTA 330 -20
Entecavir Human Plasma 50.0 – 20,000 pg/mL K2EDTA 42,49 -20,-70
Erlotinib (Tarceva) and Metabolite Human Plasma 10.0 – 4,000 ng/mL K2EDTA 315 -70
Eszopiclone Human Plasma 1.00 – 100 ng/mL K3EDTA 235 -20
Famotidine Human Plasma 1.00 – 500 ng/mL K3EDTA 298 -20
Fentanyl Human Plasma 0.0500 - 50.0 ng/mL K2EDTA Pending -20,-70
Fluconazole Human Plasma 100 – 10,000 ng/mL K3EDTA 133 -20
5-Fluorouracil Human Plasma 1.00 – 500 ng/mL EDTA 1095 -20
Fluticasone propionate / Salmeterol Human Plasma 1.00 – 200 pg/mL K2EDTA/K3EDTA 91 -20
Formoterol Human Plasma 1.00 – 100 pg/mL K3EDTA 89 -20
Guanfacine Human Plasma 50.0 - 5000 pg/mL
Hydromorphone Human Plasma 25.0 – 5,000 pg/mL EDTA 87 -20
Hydromorphone / Hydrocodone / Norhydrocodone Human Plasma 0.100 – 50.0 ng/mL K2EDTA 87 -20
Ibandronate Human Plasma 0.100 – 50.00 ng/mL K2EDTA 170 -20
Ketoconazole Human Plasma 50.0 – 5,000 ng/mL K2EDTA 560 -20
Lenalidomide Human Plasma 1.00 – 1,000 ng/mL K2EDTA 376 -20
Lopinavir / Ritonavir Human Plasma 5.00 – 5,000 ng/mL K3EDTA 526 -20
Maraviroc Human Plasma 1.00 - 1,000 ng/mL K2EDTA 180 -20
Mefenamic acid Human Plasma 50.0 – 5,000 ng/mL K3EDTA 119 -70
Memantine Human Plasma 0.100 – 100 ng/mL K3EDTA 429 -20
Mesalamine Human Plasma 2.00 to 1000 ng/mL
R,S-Methadone Human Plasma 5.00 – 1,000 ng/mL K3EDTA 240 -20
Methotrexate / 7-Hydroxymethotrexate Human Plasma 1.00 – 500 ng/mL NaEDTA 527 -20
Methotrexate / 7-Hydroxymethotrexate Human Plasma 1.00 – 500 ng/mL K2EDTA 59 -20
Methotrexate / 7-Hydroxymethotrexate Human Plasma 1.00 – 500 ng/mL K2EDTA 50 -70
Methotrexate / 7-Hydroxymethotrexate Human Urine 1,000 - 50,000 ng/mL
50.0 - 2,500 ng/mL 		None 89 -20
1-Methyluric acid Human Urine 2,500 - 20,000 ng/mL None 131 -20
1-Methyluric acid Human Urine 2,500 - 20,000 ng/mL None 131 -70
1-Methylxanthine / 1,7-Dimethyluric acid Human Urine 500 - 20,000 ng/mL None 21 -20
1-Methylxanthine / 1,7-Dimethyluric acid Human Urine 500 - 50,000 ng/mL None 21 -20
Metoprolol Human Plasma 0.500 - 250 ng/mL Heparin/EDTA 121 -20,-70
Midazolam / 1-Hydroxymidazolam Human Plasma 0.100 - 10.0 ng/mL K2EDTA 1093 -20
Midazolam / 1-Hydroxymidazolam /
4-Hydroxymidazolam		 Human Plasma 0.100 - 50.0 ng/mL K2EDTA 117 -20
Moexipril / Hydrochlorothiazide Human Plasma 1.00 - 200 ng/mL K2EDTA 36 -70
Morphine / Morphine-6-glucuronide Human Plasma 0.500 - 100 ng/mL K2EDTA 462 -20
Morphine / Morphine-3-glucuronide / Morphine-6-glucuronide Human Plasma 0.500 - 50.0 ng/mL
10.0 - 1,000 ng/mL
1.00 - 100 ng/mL
Moxifloxacin Human Plasma 25.00 - 5,000 ng/mL K2EDTA 94 -20
Moxifloxacin Human Plasma 25.00 - 5,000 ng/mL NaHep 175 -20
Naltrexone / Naltrexol Human Plasma 20.0 - 2,000 pg/mL
0.500 - 50.0 ng/mL 		K2EDTA 174 -70
Naltrexone / Naltrexol Human Plasma 4.00 - 4,000 pg/mL
0.250 - 250.0 pg/mL 		K2EDTA 35 -20
Nelfinavir Human Plasma 1.00 - 1,000 ng/mL K3EDTA 100 -20
Nicotine/Cotinine Human Plasma 1.00 - 500 ng/mL
2.00 - 1,000 ng/mL		 EDTA 184,~481 -20,-70
Nifedipine Human Plasma 1.00 - 250 ng/mL K2EDTA 277 -20
Nilotinib Human Plasma 5.00 - 2,000 ng/mL K2EDTA 102 -20
Nisoldipine Human Plasma 50.0 - 10,000 pg/mL K2EDTA 288 -20
Olanzapine Human Plasma 0.400 - 100 nM K2EDTA 234 -20
Omeprazole / 5-Hydroxyomeprazole Human Plasma 10.0 - 1,000 ng/mL K3EDTA 141 -20
Oxycodone Human Plasma 0.200 – 100 ng/mL EDTA 97 -20
Oxymorphone Human Plasma 0.0500 – 25.0 ng/mL EDTA 97 -20
Paclitaxel Human Plasma 10.0 - 2,000 ng/mL K3EDTA 433 -20
Paclitaxel Human Plasma 10.0 - 5,000 ng/mL K2EDTA 164 -20,-70
Paliperidone (9-Hydroxy Risperidone) Human Plasma 0.100 – 100 nM
Pramipexole Human Plasma 50.0 - 5,000 pg/mL K3EDTA 35 -20
Pregabalin Human Plasma 50.0 - 20,000 ng/mL K2EDTA 538 -20
Quetiapine Human Plasma 0.500 - 2,000 ng/mL K2EDTA 194,3 -20,-70
Raltegravir Human Plasma 1.00 - 1,000 ng/mL
Ramelteon Human Plasma 50.0 - 8,000 pg/mL K2EDTA 95 -20
Ranolazine Human Plasma 5.00 - 5,000 ng/mL K2EDTA Pending -20,-70
Rifaximin Human Plasma 0.100 - 10.0 ng/mL K2EDTA 448 -20
Riluzole Human Plasma 500 - 2,000 ng/mL K3EDTA -20
Risperidone / 9-Hydroxy Risperidone (Paliperidone) Human Plasma 0.400 - 100 nM K2EDTA 219 -20
Sertraline Human Plasma 10.0 - 5,000 ng/mL
Simvastatin/Simvastatin hydroxy acid Human Plasma 0.100 - 50.0 ng/mL
Sitagliptin Human Plasma 1.00 - 1,000 ng/mL EDTA 132 -70
Tadalafil Human Plasma 1.00 - 500 ng/mL K3EDTA 137 -20
Temozolomide Human Plasma 100 - 20,000 ng/mL K2EDTA 273 -20
Tenofovir Human Plasma 5.00 - 5,000 ng/mL K2EDTA 346 -20
Tenofovir Human Plasma 5.00 - 5,000 ng/mL K2EDTA 239 -70
Tetracyclines Human Urine 0.200-10 mcg/mL
Tetracycline / Oxytetracycline / Demeclocycline / Doxycycline Human Urine 200 - 50,000 ng/mL Human Urine 48 -70
Theophylline Human Plasma 100 - 50,000 ng/mL K2EDTA 89 -20
Tramadol Human Plasma 5.00 - 500 ng/mL K2EDTA 309 -20
Trazadone Human Plasma 10.0 - 5,000 ng/mL K2EDTA 182 -20
Uracil Human Plasma 20.0 - 10,000 ng/mL
R-Warfarin/ S-Warfarin Human Plasma 10.0 - 1,000 ng/mL K3EDTA 988 -20
Valsartan Human Plasma EDTA 50.0 - 10,000 ng/mL K3EDTA 621 -20
Vancomycin Human Plasma 50.0 - 10,000 ng/mL K2EDTA 63 -20,-70
Vardenafil Human Plasma 0.200 - 50.0 ng/mL K2EDTA 623 -20
Velcade Human Plasma 0.100 - 25.00 ng/mL K2EDTA 611 -70
Voriconazole Human Plasma 5.00 - 5,000 ng/mL K3EDTA 623 -20