![A Comparison of Portable Infrared Spectrometers, Portable Raman Spectrometers, and Color-Based Field Tests for the On-Scene Analysis of Cocaine A Comparison of Portable Infrared Spectrometers, Portable Raman Spectrometers, and Color-Based Field Tests for the On-Scene Analysis of Cocaine](https://cdn.sanity.io/images/0vv8moc6/spectroscopy/dd9b9c92c6220783b2d27af1a10c22d662d1c485-553x735.gif)
A Comparison of Portable Infrared Spectrometers, Portable Raman Spectrometers, and Color-Based Field Tests for the On-Scene Analysis of Cocaine
![SPECIAL INVESTIGATION: Las Vegas drug convictions rely on faulty police field tests | Las Vegas Review-Journal SPECIAL INVESTIGATION: Las Vegas drug convictions rely on faulty police field tests | Las Vegas Review-Journal](https://www.reviewjournal.com/wp-content/uploads/2016/10/web1_drugfieldtest_102016db_002_7204141.jpg?w=640)
SPECIAL INVESTIGATION: Las Vegas drug convictions rely on faulty police field tests | Las Vegas Review-Journal
![Evaluation of the NIK® test: Primary general screening test for the presumptive identification of drugs Evaluation of the NIK® test: Primary general screening test for the presumptive identification of drugs](https://www.biocoreopen.org/fullImg/ijcf-2-5-3222.jpg)
Evaluation of the NIK® test: Primary general screening test for the presumptive identification of drugs
![Evaluation of the NIK® test: Primary general screening test for the presumptive identification of drugs Evaluation of the NIK® test: Primary general screening test for the presumptive identification of drugs](https://www.biocoreopen.org/fullImg/ijcf-2-5-3223.jpg)
Evaluation of the NIK® test: Primary general screening test for the presumptive identification of drugs
![Evaluation of the NIK® test: Primary general screening test for the presumptive identification of drugs Evaluation of the NIK® test: Primary general screening test for the presumptive identification of drugs](https://www.biocoreopen.org/fullImg/ijcf-2-5-3226.jpg)
Evaluation of the NIK® test: Primary general screening test for the presumptive identification of drugs
![Pooled specificity and sensitivity of SARS-CoV-2 detection using the... | Download Scientific Diagram Pooled specificity and sensitivity of SARS-CoV-2 detection using the... | Download Scientific Diagram](https://www.researchgate.net/profile/Md-Asiful-Islam-2/publication/353731582/figure/tbl1/AS:1054887337009152@1628516148053/Pooled-specificity-and-sensitivity-of-SARS-CoV-2-detection-using-the-rapid-antigen-test.png)